Sikadur®-31 CF Normal is a moisture tolerant, thixotropic, structural 2. Buy Structural Fixings at Screwfix. SikaQuick®-2500. Introducing Sikadur Crack Fix, your ultimate solution for repairing cracks and restoring structural integrity! This advanced crack-fixing system is specifically designed to tackle a wide range of concrete cracks. It conforms to the current ASTM C-881, Types I and IV, Grade-3, Class-C and AASHTO M-235 specifications. Sika® Inject-215 is used as a post-construction, external injection sealing system for construction, and limited movement expansion or. Achieves >3,000 psi at 1 hour, >9,000 psi at 28 days 15-Minute set time, open to foot traffic in 1 hourSika® Injection-307 is a very low viscous, elastic polyacrylic injection resin with a versatile and adjustable reaction time. Sika. Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. Our repair mortars and concrete systems are compatible with a full range of Sika repair and protection materials so that not only the visible signs of damage are repaired, but deterioration is. Sika. Model # 106711. Sika‘s concrete repair materials are specifically engineered to meet the rigorous demands of the industry such as high strength, fast turn around and low shrinkage. £29. Blue Circle Extra Rapid Setting Cement - 5kg. Convenient easy to use cartridge fits standard caulk gun. CF Normal. No Nonsense Path, Patio & Driveway Sealer 5Ltr (49885) No Nonsense Path, Patio & Driveway Sealer 5Ltr. 1-fl oz Mortar Masonry Sealer. Fillers and Putty are used to fill or seal holes, cracks, or gaps prior to further decorating. Check out the instructional video below. Concrete Concrete Repair Building Components Flooring Joint Sealing Offsite Construction Passive Fire Protection. Waterproof and water immersible after cure. Order Sika Sikaflex EBT+ All-Weather Sealant Grey 300ml at Screwfix. Sika Concrete Crack Repair. Sikadur® Crack Repair Kit is used in the following situations: • Low pressure injection of cracks in structural concrete and solid masonry. Many years of research and development plus decades of practical experience has enabled Sika to provide systems to restore and rehabilitate concrete and masonry structures that have deteriorated due to corrosion, structural damage, water infiltration, freeze/thaw,. St. 99 (Excl VAT) Add to basket. Buy Now. keyboard_arrow_left Back . Construction; Concrete Repair; Sikadur®-752. £19. Simply mix in the tube and use for high-strength repairs to concrete. Tooling & Finishing When finished with the injection process, re-inject eachCONCRETE REPAR STE ANDBOO 21 SIKA REPAIR SYSTEMS PRODUCT Type Application BS EN 1504 Reference Sika® MonoTop®-612 Repair Mortar Hand Wet spray Part 3 - R4 Sika® MonoTop®-615 Repair Mortar Hand Wet spray Part 3 - R3 Sika® Rapid Repair Mortar Repair Mortar Hand Part 3 - R4 SikaCem®-133 Gunite S Repair Mortar. 291. 2. Low viscosity; allows material to penetrate and seal fine, hairline cracks. Note: Injection pressure will vary from 200 psi to 2500 psi depending on the width of the crack, thickness of concrete and condition of concrete. Delivery. 49 ex VAT. (38. Sika Corporation. Screwfix customers rate this product 4. Sikaflex®-1A is a premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant. wide and provides long term durability. Easy-to-use. Overcoat 48-72 hours after application with any. Repair Type. Sika is a leading supplier of construction and industrial products in New Zealand. Co. 1920’s. Construction Solutions. Contains crack-sealing material and crack filling resin and all necessary application accessories. Concrete Repair Mortars; Resin Repair Mortars. A ready to use, textured concrete patch for repairing small spalls and cracks in concrete. Quikrete 10 oz. £22. AB : Ce-ment = 1 : 2–3 by volume, depend on desired consist-ency) Repair on tile joint : Mix component A+B Sikadur®-20 Crack Seal then add Sika Tile Grout as filler (Comp. The incorporation of low density aggregates allows high build applications on vertical and overhead surfaces. 9. Tel: +60 6 799 1762 Fax: +60 6 799 1980. Non-sagging – can be used for overhead applications. Using a needle tip mixer (14, 15 and 18 gauge), a low viscosity repair material can easily be injected into hairline cracks without routing Kelton Glewwe, Roadware, Inc. com. (10-15 degrees), affix injection ports and seal the crack with cement (best to buy the sika concrete crack injection fix kit. Compatible with All Paints & Coatings. Note: Primers are adhesion promoters. Sikacryl Ready-Mixed Stucco Patch is a sanded, off-white, ready to use, acrylic-based, stucco patch for repairing small holes and cracks in stucco surfaces. DRICORE PRO CONCRETE REPAIRFIX CRACKS IN YOUR POURED FOUNDATION WALLS WITH AN ADVANCED CRACK REPAIR SOLUTION. com Subject: Product Data SheetHigh-modulus, high-strength, structural, extended pot life, epoxy paste adhesive. 14. Sika® Injection-307 is a polyacrylic,3-part elastic based injection resin with a very low viscosity and adjustable reaction time. 201 Polito Avenue Lyndhurst New Jersey 07071 United States of America phone +1 (201) 933-8800 fax +1 (201) 804 1076. sika. Sikadur®-20 Crack Seal is a solvent-free, 2-component low viscosity semi elastic liquid, based on epoxy resins. Wear eye protection, the foam will drip out of the. Back to main menu;. Concrete crack repair system About Sika History of Sika Sika Acquisitions Sika Business Units Sika eShop User Guide. If there's still movement in step (which has caused the crack) then go resin for a repair but can use the Toupret Filler for general repairs to the step, sand down then repaint. Injectokit LV is a clear low viscosity two part epoxy crack injection resin in a. You should look for a material which has a bit of elasticity, so the you will have less maintenance as the concrete moves. Note: Primers are adhesion promoters. The choice of the appropriate rehabilitation strategy, based on the root cause of concrete failure, can also significantly improve the overall performance of a structure. Designed for use on exterior concrete substrates such as sidewalks, walkways, patios, parking garages, and residential driveways. Tenacious crack sealing grout. 645. Concrete Crack Repair; Waterproofing Injection. Reinforced concrete structures are built to last. SELF-LEVELLING: Sika Crack Flex Sealant makes repair virtually invisible for cracks up to 25 mm in concrete and because it is self-levelling, it delivers a flat smooth surface for a professional look. Can be applied up to 1/4 in. May produce an allergic reaction. £17. SikaQuick®-1000 is a one-component, rapid hardening, early strength gain, cementitious, patching mortar for concrete. Compare. 99 Inc Vat. 3-4 Gresik Industri Park Roomo, Manyar Gresik, East Java 61151. The floor gets cracked or damaged due to wear and tear of different things on the floor that damage or break it. FREE next day delivery available, free collection in 1 minute. Sikaflex® Crack Flex Sealant Author: Sika Corporation, 201 Polito Avenue, Lyndhurst, NJ 07071, Phone: +1-800-933-7452, Fax: +1-201-933-6225, usa. I want to have the step paint-free. Sika Corporation. Products u. Sika News. - Ceramics, fibre cement. Adjustable curing time between 10 and 50 minutes. Moisten the crack with water about 4 hours in advance, then apply the paste. 4 Fakespot Reviews Grade: A Adjusted. It conforms to the current ASTM C-881, Types I and IV, Grade-3, Class-C and AASHTO M-235 specifications. Choose from top trade brands. ONE-COMPONENT, MULTI-PURPOSE, POLYURETHANE SEALANT. EA Sikacryl Ready-Mix Stucco Patch 32 oz - Fast Setting Acrylic Patch for Stucco Repair - Interior/Exterior Use - Off-white Color. Sika Fast Setting 10. It is a multi-purpose mortar which can be applied by trowel or low pressure wet spray process. Repair and renovation of concrete buildings and infrastructure is an important process – it helps us to provide a sustainable approach to building – prolonging the life of a structure and preventing demolition and reconstruction. For outdoor patios, pavements and paths with joints over. BUY NOW. 00 View Product; PRO Foundation Crack Repair Kit | Urethane $ 429. Sika® PowerSet is a specially formulated two-part polyester compound designed to cure quickly for the repair. Non-sag, also overhead. Back to main menu;. ImprintSika EA Sikaflex Self-Leveling Sealant Gray 29 fl oz - Fast Setting Polyurethane Sealant for Concrete & Masonry - No Tooling Feature - Gray Color. BEST FOR FLOORS: Henry, W. Sika is a global leader in construction and repair products, offering a wide range of solutions for concrete, shotcrete, grouting and more. Concrete Repair Crack Repair. Excellent adhesion. Its elastic technology formulation allows the sealant to remain flexible and move with the crack. Sikadur®-31+ is a 2-part, low VOC epoxy based, moisture tolerant, thixotropic, structural adhesive which bonds most construction materials. Excellent adhesion to the substrate. Everbuild 203 Accelerator & Frostproofer - 5L. Keep in original containers. An adhesive is used mainly in applications needing to bond surfaces together in a functional manner while sealants are used to seal the spaces in a joint creating an air and watertight finish. Sikaflex Concrete Fix No-Sag Concrete Crack Filler Repair Polyurethane Sealant in Limestone (346) Questions & Answers (115) +8 Hover Image to Zoom $ 8 54. Brochure PDF - 1 MB (en) A solvent-free, 2-component low viscosity and semi elastic liquid, based on epoxy resins. • Three-part epoxy-based repair mortar is quick and easy to mix. 201 Polito Avenue Lyndhurst New Jersey 07071 United States of America phone +1 (201) 933-8800 fax +1 (201) 804 1076. QUIKRETE Re-Cap 40-lb Resurfacer. 5. Textured to blend with concrete surface Elastic technology allows for crack movement Waterproof Resists aging and weathering. Ministry of Transport Québec acceptance. Order online at Screwfix. Sikadur® Crack Repair Kit es un kit que sirve para reparar y sellar grietas pequeñas o menores en el concreto y la mampostería. Elastic technology allows for crack movement. sika. Sikaflex® Concrete Fix. Coverage: 20m². High-strength bonding/grouting adhesive. This method statement describes the step by step procedure for waterproofing of cracks through injection. About Sika History of Sika Sika Acquisitions Sika Business Units Sika eShop User Guide. This easy 3-step system includes: Step 1 - concrete crack prep, Step 2 - concrete crack injection, and Step 3 - carbon fibre reinforcement kit. This is a great filler for concrete/masonry, etc. The injection mortar system also benefits from system components such as anchor rods, anchors with internal threads, injection anchor sleeves for fixings in concrete, aerated concrete and. PRODUCT INFORMATION Packaging 4 kg and 14 kg Plastic tub. £19. Sikadur®-20 Crack Seal Part A. Sikacryl® Ready-Mix Concrete Patch. ALUKAP-XR Anti-Dust Roofing Tape 43mm x 10m (196VK) compare. Reinforced concrete structures are built to. Screwfix customers rate this product 4. 100-150. 2/5. It sets hard and will not wash out, whilst remaining water permeable. Sikadur Crack Repair Kit is a two multicomponent, low viscosity, fast curing, epoxy sealing system for the repair of cracks that occur in solid concrete and solid masonry substrates. £ 21. Perhaps it was the colour paint used your. Delivery. Concrete crack repair system Sikadur® Injection Gel. Available in a range of widths and lengths. Sika EA Sikaflex Self Leveling Sealant Sandstone 29 fl oz - Fast Setting Polyurethane Sealant for Concrete & Mortar Repair - Shrink & Crack Resistant. Find out more here. Just mix in the tube and use for high strength repairs to concrete. Features and benefits. Typical application thickness is 1/16”–2. Tax included. It conforms to the current ASTM C-881 and AASHTO M-235 specifications. Store Finder;. £4. in 16 years, Sika is the company with the most concrete repair projects awarded worldwide. Adheres to damp masonry and is weather-resistant. As strong as. The SikaFix® Kit CA is an injection package for the repair of leaking cracks in foundations and waterproofing of piping penetrations, static joints and other types of voids. by Satisfied. 1. Model # 696220 SKU # 1001726353. Sika can provide all technologies of grouting materials for specific application on job sites. £3. Because this problem is very much common everywhere. This product is solvent free and moisture-tolerant. Tenacious adhesion to wet and dry surfaces. Pour sand in the crack until it is to the top and then saturate with the Sika crack fix. Very fast curing (verify set times before usage) Easy to install and finish. the material in the crack. Sikadur® Crack Repair Kit is used in the following situations: • Low pressure injection of cracks in structural concrete and solid masonry. 96 (8) DRICORE. Sika MonoTop®-352 N. 3-0. Shop Sika EA Sikaflex Concrete Fix Limestone 10. Sikadur®-20 Crack Seal Part A. Convenient packaging. Easy to apply, one component with accelerator. Buy online & collect in hundreds of stores in as little as 1 minute! Free returns. com. Fully concealed and non-destructive, this is cost effective and more reliable. ex. 1 bag yields ~13 L of fluid mortar that corresponds to 0. Improves impact and abrasion resistance. UK call centre ready for your call 24/7. Bond It Liquid Mortar Plasticiser - 5L. : +63 2 8790-9800 Fax : +63 2 8790-9828. . com where we will be happy to discuss your project. Concrete crack repair system. Compatible with All Paints & Coatings. 2-part Low VOC Epoxy Adhesive for Structural Bonding and Concrete Repair Sikadur® Injectokit TH. Sika Concrete Crack Repair 250ml. Adhesive, Anchoring. Our full range of products includes repair mortars, corrosion protection and structural strengthening solutions. Free Foam expands to 4 times its liquid volume. AB: Sika Tile Grout = 1 : 2–3 by volume, depend on de-sired consistency)Sika is a specialty chemicals company with a leading position in the development and production of systems and products for bonding, sealing, damping, reinforcing and protecting. . Developed to repair damaged masonry between brick and stonework. 5 ounces; Curing time: 1 week; Application: Cartridge. Structural Injection. Crackfiller EP100 is a solvent-free two-part epoxy resin based system with a free flowing formulation designed to penetrate cracks and gaps, rapidly achieving mechanical strength several times that of high quality concrete. Crack Filler, Sealant. Not Available for Delivery. With a utility knife, cut the tip of the nozzle at a 45° angle to the desired bead size, then puncture the seal inside of the nozzle and place the cartridge into a caulking gun. Sold & shipped by B&Q. Back to main menu;. The crack must not be neglecting. Also for repairing cracks and damaged stone edges. Sika has extensive experience and expertise in all aspects of concrete repair and protection, with documented project references dating back to the. Rust-Oleum Rock Solid Fast Patch Kit repairs cracks, spalls and minor damage to concrete surfaces without. The choice of the appropriate rehabilitation strategy, based on the root cause of concrete failure, can also significantly improve the overall performance of a structure. Due to this fast reaction time, it is only injected with a 2-component pump. ROCKSOLID Fast Patch Concrete Crack Repair Kit, 2 x 946 mL . Sets in as fast as 3 minutes. 201 Polito Avenue Lyndhurst New Jersey 07071 United States of America phone +1 (201) 933-8800 fax +1 (201) 804 1076 Order online at Screwfix. SITE HANDBOOK - Patch Repair and Spray Applications. 0 out of 5 stars 3. 201 Polito Avenue Lyndhurst New Jersey 07071 United States of America phone +1 (201) 933-8800 fax +1 (201) 804 1076 Introducing Sika's innovative and easy to use concrete crack repair system. Wall fillers and flexible fillers create a clean smooth and professional finish. After that, several u-shaped staples which are metallic are passing through the holes in the concrete. 2-components automatically mix in the nozzle for easy application. Suitable Application. ImprintSikaflex 11FC Read more Sikadur 31 EF Read more Sika Concrete Crack Repair Read more Sika Grout 214 Read more Sika Grout 212 Read more Sika Waterbar - D19 Read more Sika Waterbar - D24 Read more Sika Viscobond Read more Sika Topseal protection 107 Read more Sika watertight Concrete Powder Read more Sika-2 Water. I wanted to seal them. #1 Home Improvement Retailer. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. 20 minutes at 25 °C. SikaFix HH Accelerator (Spanish) Safety Data Sheet (SDS) PDF - 477 KB (es) SikaFix Fact Sheet. Sika Concrete Crack Repair Screwfix, Fluidmaster Flush 'n Sparkle Refills,. 92. 50 per L . It may also be used in applications with high pressure flowing water. It is a super low-viscosity, high-strength adhesive formulated specifically for sealing both dry and damp, existing, non-dynamic cracks. It is essential to pay attention to concrete crack repair right away. Scrolling the internet for hours can’t seem to find any different suggestions. Sika has extensive experience and expertise in all aspects of concrete repair and protection, with documented project references dating back to the. Showing 9 of 9 products. 8 kg/m² , depending on substrate condition. 1-fl oz Sealant. It is a high performance repair mortar for vertical and overhead surfaces and offers the additional benefit of Sika FerroGard® 901, a penetrating corrosion inhibitor included in its formulation. Product Specs. 49. Read More add. Toupret Glazing Putty White 1kg (890PP) (3) compare. Decided to try using Sika. The application is easy and cleanup is simple. It in-cludes a 2-part polyester surface crack sealer, 2-part low viscosity epoxy injection resin and all the neces-sary accessories needed for the application. Palingon-Tipas, Taguig City 1747 Taguig City, Philippines 1634 Tel. After years of research and decades of practical experience, Sika has developed a fully comprehensive solution to restore and renew concrete structures. (355) Write a review. The extensive range of materials provided also includes multi-purpose repair products that can be used all around a building to. It conforms to the current ASTM C-881 and AASHTO M-235 specifications. Sikadur® Crack Repair Kit. Also for repairing cracks and damaged stone edges. 2 DESCRIPTION. She proposed to pay for something called sika concrete crack fix if we're happy with that solution. ICRI* awards in 16 years. The expert builders are eligible or able to repair the specific damaged or broken part of the storey easily using. Sika Concrete Crack Repair is a two-part cold cure, thixotropic structural adhesive based on epoxy resin. Sika customer advice and support is second to none, from concept to successful completion on site. 04 020205010020000014 PRODUCT DATA SHEET Sikadur® Crack Repair Kit Concrete crack repair system PRODUCT DESCRIPTION Sikadur® Crack Repair Kit is a two multicomponent, low viscosity, fast curing, epoxy sealing system for the repair of cracks that occur in solid concrete and. 2016 Contact Sika: Phone: 1-800-933-SIKA(Nationwide) Title: Repairs Created Date:Repair mortars are specifically designed for restoring or replacing the original profile and function of the damaged concrete. Sika concrete repair mortars are suitable for restoration work, repair of spalling and damaged concrete in all types of structures including buildings, bridges, infrastructure and super-structures. Permanently elastic, can absorb limited movements. Concrete Crack Repair and Protection Products. hi all. Two-component, polymer-modified, cementitious leveling/pore sealing mortar plus FerroGard 901 penetrating corrosion inhibitor. As the only construction manufacturer able to supply a comprehensive range of products for total corrosion management in Ireland, Sika ensures the right solution for every project is recommended. Sika Concrete Fix can be used as a structural adhesive for: - Concrete elements. It can be used in structural concrete, masonry and wood. Meets Federal Specification TT-S-00230C, Type II, Class A. Toupret Glazing Putty White 1kg (890PP) (3) compare. . The crack must be clean and sound (loose. Sika: Sika: Quikrete: Sika: Name: 10. Storage Life: 12 Months. 01 3020204030010000096 / 3 A one-component textured self leveling sealant used for sealing horizontal cracks. The fibers that cross the crack and are anchored in the matrix on both sides, effectively “sew” its two sides together and prevent it widening. Page 3. Sika Sikadur Crack Fix, 180 mL, Convinient Low-viscosity & High Strength Multi-Purpose Epoxy Resin. Very fast curing (verify set times before usage) Easy to install and finish. Add Box Quantity (12+) Sika Concrete Crack Repair is a two-part cold cure, thixotropic structural adhesive based on epoxy resin. High elasticity – cures to a durable, flexible consistency with exceptional cut and tear-resistance. Ideal for gravity feed of static cracks (using the. Concrete Repair. Chewitt96, May 11, 2021. 48 £ 40. Sikaflex®+ Concrete Fix. Provides a passivating environment for embedded steel reinforcement. Sikagard® Protective coatings and hydro-phobic impregnations BEFORE APPLICATION 4 Health and Safety 5 Technical and Safety Information 6 Bag Layout 7 Climate Conditions 8 Equipment CONCRETE REPAIR. 1. Using Sika to fix cracks in your driveaway is a great way to extend the life of y. BEST. Many years of research and development plus decades of practical experience have enabled Sika to provide systems to restore and rehabilitate concrete structures that have deteriorated due to corrosion, structural damage, water infiltration, freeze/thaw, reactive aggregates, and. ICRI* awards in 16 years. for pricing and availability. Ideal for fixings in perforated brick, solid brick, concrete and aerated concrete. Crack Repair. Sikadur crack repair is a multipurpose epoxy resin. Cement based coating for preventing water and damp penetration in walls and floors. SikaRepair®-223 is a one-component, early strength gaining, cementitious, patching material for vertical and overhead repair of concrete. Crack Fix. Back to Construction Solutions;. Crack injection resin. EMEA: CE-Marking according to 1504-5. High build bonding agent. View all: Sika Waterproof Sealants. Whether you need a superplasticizer, a self-consolidating concrete, an air-entraining admixture or a micro. Complies with ASTM C881-78 Type I, Grade I Class B+C. Adhesive, Anchoring. The area should be dry before applying the cement paste, then using a pointed trowel cover the crack with the paste. 1920’s. 60 days free credit available. 99 Inc Vat. Products. Sikadur®-52 ZA, an injection or poured epoxy resin, provides a reliable seal for a wide range of. Sika Corporation. Bostik Cementone Rendabond PVA - 5L (23) £19. Sika® Inject-215 is used for curtain/membrane injections in damp or water saturated ground conditions to waterproof large surface areas. Buy 3 for £13 - View Offer. The fine aggregates are suspended in a unique waterproof polymer to ensure easy application by roller or brush. Joint sealing facilitates construction as many components are made of different materials that need a joint to allow for movement of the structure. £17. POLYMER MODIFIED HIGH STRENGTH, HIGH BUILD CONCRETE REPAIR MORTAR SikaQuick®-2500. Sika. Sika Sikadur Crack Fix, 180 mL, Convinient Low-viscosity & High Strength Multi-Purpose Epoxy Resin. Sikadur®-31 CF Normal is a solvent-free, moisture tolerant, thixotropic, structural two part adhesive and rerpair mortar, based on a combination of epoxy resins and special fillers, designed for use at temperatures between +10°C and +30°C. 201 Polito Avenue Lyndhurst New Jersey 07071 United States of America phone +1 (201) 933-8800 fax +1 (201) 804 1076. UK call centre ready for your call 24/7. 20 Limusnunggal, Cileungsi Bogor, West Java 16820. Locations Careers Continuing Education Library Sika Every Day App Sustainability Follow Us. After years of research and decades of practical experience, Sika has developed a fully comprehensive solution to restore and renew concrete structures. Sika® Injection-307 is a polyacrylic,3-part elastic based injection resin with a very low viscosity and adjustable reaction time. For use in cold to moderate climate conditions. 3 Details of the supplier of the safety data sheet 1. Sika Concrete Fix is an easy to mix and use, 2-component, high-strength, structural, smooth-paste epoxy adhesive comprised of Sikadur-33 Part A and Sikadur-33 Part B. MasterInject has been developed to be used anywhere cracks appear in buildings and concrete structures for effective resistance and protection against further deterioration and ingression of water, corrosive fluids and other contaminants. Sika's specially designed products will repair and patch concrete spalls, cracks. Sika takes pride in having a wide selection of adhesives and sealants that are ideal even for the toughest of jobs. Crackfiller EP100 is a solvent-free two-part epoxy resin based system with a free flowing formulation designed to penetrate cracks and gaps, rapidly achieving mechanical strength several times that of high quality concrete. SikaBond Construction Adhesive Heavy Duty Multipurpose Elastic Polyurethane: 1 Qt. Sika. Click & Collect. 40/L quantity. Sikaflex® Concrete Fix. Back to main menu; Products by Name Structural Strengthening Products. Sika® PowerSet. Sikadur® Crack Fix. This is all based on more than 100 years of experience on large and small projects all over the world. Seals cracks up to 1” wide. Most. ImprintNote: For enhanced performance, SikaRepair® SHB may be used with Sika® Latex R instead of water. Sika MonoTop®-412 NFG. Five times stronger than concrete. 10. The UK’s leading retailer of trade tools and hardware. Bostik Roof Repair Compound Black 1kg (57518) Bostik Roof Repair Compound Black 1kg. Often soft in texture, when applied these substances harden. cracks up to 1 in. Also removes limescale. Buy Now.