ISO-THERM Insulation
Nuaire PIV units
Damp Proof Membrane
Damp Proof Cream
Tanking Slurry Systems
Explore Newton
Shop Wykamol Membranes
Waterproof Membrane Kits
SX70 Wood Stains
Boracol
Crack Sealing
Crack Stitching Bars
Explore Soudal
Fix ALL Rewards!
'Genius Gun' Foam Range
Special Offers
Wonder Grip Hub
Browse All Deals
How To Damp Proof Walls
Woodworm: Ultimate Guide
How To Stop Condensation
How To Seal Window Frames
CHRISTMAS CLOSURE 24/25: We’re closing from 1pm on the 20th December 2024, until 6th January 2025. Read our blog for full details!
Soudaseal 270HS is a high-quality, single-component adhesive-sealant offering exceptional stiffness and very high adhesive strength. Its hybrid polymer formulation is chemically neutral and remains flexible after curing.
This high-performance adhesive-sealant provides superior mechanical properties, combining high flexibility with remarkable bond strength. It is solvent-free, can be sanded after curing, and exhibits excellent adhesion on almost any surface, including slightly moist substrates.
Soudaseal 270HS delivers quick build-up of end strength, withstands all climatic conditions, and accommodates movement up to 20%.
Colour
Size
Free Delivery
on orders over £100(ex. VAT, mainland UK only)
Free Help & Advice
Call 01355 222 777Mon.-Fri 8:30am - 4:15pm, or email us
Next Day Delivery
Order before 14:00 Mon - Fri for same day despatch
Great Service
A proudly independent family business with 40 years experience
✔️ Superior elasticity with movement accommodation up to ±20%, ideal for joints and bonding applications.
✔️ Excellent chemical resistance to water, aliphatic solvents, mineral oils, grease, and diluted inorganic acids.
✔️ Maintains permanent elasticity over time, even in vibrating constructions and dynamic joints.
✔️ Non-staining and hydrophobic, preventing water penetration and ensuring clean, professional finishes.
✔️ Contains XS1 fungicide for mould protection, making it suitable for sanitary applications.
Soudaseal 270HS is a high-strength Hybrid Polymer Adhesive Sealant designed to meet the demanding requirements of modern construction and industrial applications. Formulated using innovative hybrid polymer technology, this adhesive-sealant combines high flexibility with excellent stiffness and very high adhesive strength. Its advanced formulation allows it to remain flexible even after curing while providing superior mechanical properties that ensure a durable and lasting bond.
The chemically neutral formulation of Soudaseal 270HS provides high performance mechanical properties, enabling it to combine rigidity with excellent flexibility. This unique combination allows the product to handle movement accommodation up to 20% while maintaining a strong and reliable bond.
Soudaseal 270HS has high green strength, providing immediate tack and allowing for rapid handling. Its end strength develops quickly, offering a high build-up of shear strength once fully cured. The product's high initial tack ensures secure bonding even in vertical or overhead applications.
As a solvent-free, silicone-free, and isocyanate-free product, Soudaseal 270HS is safe for use in sensitive environments. It is EC1 PLUS R certified for very low emissions, ensuring it meets stringent environmental and safety standards. Additionally, it remains free of halogens and acids, making it suitable for indoor and outdoor applications.
Soudaseal 270HS is formulated to prevent bubble formation within the sealant, even in high temperature and humidity applications. Its UV and weather resistance make it suitable for use in challenging outdoor environments where long-term durability is essential.
Once fully cured, Soudaseal 270HS can be sanded to achieve a smooth finish. It can also be painted with water-based systems and industrial varnishes and coatings, allowing for seamless integration into various finishing processes.
The product exhibits good resistance to water, aliphatic solvents, mineral oils, grease, and diluted inorganic acids and alkalis. However, it has poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.
Soudaseal 270HS remains flexible even after curing, accommodating movement up to 20%. This flexibility, combined with its rigidity, makes it suitable for bonding applications subject to vibration and structural movement.
High Flexibility and Rigidity: Soudaseal 270HS offers a unique combination of high flexibility and rigidity, providing a strong yet flexible bond. Its movement accommodation up to 20% ensures it handles structural movement without cracking or losing adhesion.
Very High Adhesive Strength: The adhesive strength of Soudaseal 270HS is remarkable, offering high green strength and rapid build-up of end strength. This ensures secure bonding in both vertical and overhead applications.
Environmentally Friendly and Safe: Free of isocyanates, solvents, halogens, and acids, Soudaseal 270HS is environmentally friendly and safe for indoor use. Its EC1 PLUS R certification guarantees very low emissions.
Bubble-Free and UV Resistant: The advanced formulation of Soudaseal 270HS prevents bubble formation even in high temperature and humidity conditions. Its UV and weather resistance ensure long-term durability in outdoor environments.
Sanding and Painting Capabilities: Once fully cured, Soudaseal 270HS can be sanded to achieve a smooth finish and painted with water-based systems and industrial varnishes for seamless integration into finishing processes.
High Initial Tack and Shear Strength: Its high initial tack ensures immediate bonding, while rapid build-up of end strength provides high shear strength once fully cured.
Versatile Adhesion to Multiple Substrates: Soudaseal 270HS adheres well to a wide range of substrates, including metals, plastics, treated wood, and coated surfaces. It can even bond to slightly moist surfaces.
Chemical Resistance and Weatherproofing: Soudaseal 270HS is resistant to water, aliphatic solvents, mineral oils, grease, and diluted inorganic acids and alkalis. Its weatherproofing properties ensure it withstands all climatic conditions.
Elastic Structural Bonding in Automotive Applications: Soudaseal 270HS is ideal for elastic structural bonding in automotive applications such as buses, trains, trucks, caravans, and trailers. Its flexibility accommodates vibration and movement while providing a tough bond.
Structural Flexible Bonding between Metal Surfaces and Plastics: The adhesive strength of Soudaseal 270HS makes it suitable for structural bonding between metal surfaces, coated surfaces, and various plastics, ensuring a strong, durable bond.
Joints Between Metal Plates: Soudaseal 270HS is perfect for sealing joints between metal plates, providing a flexible yet rigid bond that handles movement and prevents corrosion.
Bonding in Vibrating Constructions: Its flexibility makes it suitable for bonding in vibrating constructions, ensuring a secure bond that withstands vibrations without cracking or losing adhesion.
Elastic Bonding in Marine, Train, and Aerospace Industries: Soudaseal 270HS is suitable for use in marine, train, and aerospace industries due to its high adhesive strength, flexibility, and resistance to weather and UV radiation.
Connection Joints in Sheet Metal Fabrication: Soudaseal 270HS provides excellent adhesion in sheet metal fabrication, offering a flexible and durable bond that accommodates movement while preventing corrosion.
Structural Bonding in Construction and Industrial Applications: The combination of high adhesive strength and flexibility makes Soudaseal 270HS ideal for structural bonding in construction and industrial applications where a tough and flexible bond is required.
Soudaseal 270HS is suitable for bonding a wide range of substrates, including treated wood and PVC. It adheres well to metals such as stainless steel, AlMgSi1, brass, electro-galvanised steel, AlCuMg1, hot-dip galvanised steel, AlMg3, and steel ST1403. It also bonds effectively to plastics like polystyrene, polycarbonate (Makrolon®), PVC, ABS, polyamide, PMMA, fibreglass-reinforced epoxy, and polyester.
Plastics often contain releasing agents, processing aids, or protective foils that must be removed before bonding or sealing. For optimal adhesion, use Soudal Cleaner & Degreaser. Stress-loaded applications involving PMMA (Plexi® glass) or polycarbonate (Makrolon® or Lexan®) can cause stress cracking and crazing in these materials.
Soudaseal 270HS is not suitable for PE, PP, PTFE (Teflon®), or bituminous substrates.
Always conduct a preliminary adhesion test on any substrate.
An optimal bond thickness of at least 2mm ensures that the product's elastic properties perform to their fullest potential.
Proper surface preparation is crucial for achieving a strong and lasting bond. Clean and degrease all surfaces thoroughly using Soudal Cleaner & Degreaser, ensuring that the substrate is free from dust, oil, grease, and other contaminants that could impair adhesion.
For porous surfaces in water-loaded applications, prime with Soudal Primer 150 to ensure optimal adhesion. For plastic surfaces, remove any protective foils, releasing agents, or processing aids that could interfere with bonding.
A preliminary adhesion test on each substrate before starting the application is highly recommended.
To ensure an effective and durable bond with Soudaseal 270HS, start by preparing the cartridge.
Cut the nozzle at a 45-degree angle to the desired width and insert the cartridge into a caulking gun.
Apply the adhesive sealant evenly onto one of the surfaces using a suitable applicator, maintaining continuous pressure for a consistent bead.
Immediately press the surfaces firmly together after applying the adhesive, ensuring full contact across the entire bonding area. If necessary, secure the bonded materials until the adhesive sets.
Allow Soudaseal 270HS to cure completely before subjecting it to any stress or moisture. Curing time varies based on environmental conditions and substrate type.
Once Soudaseal 270HS has cured, it can be sanded to achieve a smooth finish. The adhesive sealant is also compatible with water-based paints and industrial varnishes, allowing seamless integration into your finishing process.
Uncured Soudaseal 270HS can be cleaned using Soudal Swipex Cleaning Wipes before it hardens.
For cured adhesive sealant, use Soudal Sealant Remover Spray to soften the cured product before scraping it off mechanically.
A) Soudaseal 270HS is a high-quality, single-component adhesive sealant with a hybrid polymer formulation. It offers very high adhesive strength and stiffness while remaining flexible after curing. The product is solvent-free and combines high flexibility with remarkable bond strength, making it suitable for bonding and sealing in various construction, automotive, and industrial applications.
A) Soudaseal 270HS is ideal for structural bonding and sealing in automotive, marine, construction, and industrial applications. It is commonly used for bonding metal surfaces, plastics, treated wood, and coated surfaces. The product is also suitable for outdoor sealing and bonding, elastic structural bonding, and connection joints in sheet metal fabrication.
A) Yes, Soudaseal 270HS is formulated for dual use as both an adhesive and a sealant. Its high initial tack and rapid build-up of end strength provide excellent bonding capabilities, while its flexibility and movement accommodation up to ±20% make it effective for sealing joints.
A) Soudaseal 270HS can accommodate movement up to ±20%, allowing it to handle structural movement without cracking or losing adhesion. Its flexibility and rigidity combination ensures a strong yet elastic bond that remains durable in demanding conditions.
A) Soudaseal 270HS adheres well to metals such as stainless steel, AlMgSi1, brass, electro-galvanised steel, AlCuMg1, hot-dip galvanised steel, AlMg3, and steel ST1403. It also bonds effectively to plastics like polystyrene, polycarbonate (Makrolon®), PVC, ABS, polyamide, PMMA, fibreglass-reinforced epoxy, and polyester, as well as treated wood and coated surfaces.
A) Soudaseal 270HS is not suitable for PE, PP, PTFE (Teflon®), bituminous substrates, or copper-containing materials like bronze and brass. It should also not be used on stress-loaded PMMA or polycarbonate applications due to potential stress cracking and crazing.
A) Ensure all surfaces are clean, dry, and free from dust, oil, grease, and contaminants. Use Soudal Cleaner & Degreaser for non-porous surfaces and prime porous surfaces in water-loaded applications with Soudal Primer 150. For plastics, remove any releasing agents or protective foils, and conduct a preliminary adhesion test on each substrate.
A) An optimal bond thickness of at least 2 mm ensures the product's elastic properties are fully realised, providing a strong and flexible bond that accommodates movement.
A) Soudaseal 270HS can be applied in temperatures ranging from 5°C to 35°C. Once cured, the adhesive sealant can withstand temperatures between -40°C and 90°C without losing its performance characteristics.
A) Soudaseal 270HS typically forms a skin within five minutes at 23°C and 50% relative humidity. The curing speed is approximately 3-4 mm per 24 hours under similar conditions. Allow the adhesive sealant to cure completely before subjecting it to stress or moisture.
A) Cut the nozzle of the cartridge at a 45-degree angle and insert it into a caulking gun. Apply the adhesive evenly onto one surface using a suitable applicator. Press the surfaces firmly together immediately after application, ensuring full contact. Secure the materials if necessary until the adhesive sets, and allow it to cure completely before exposing it to stress.
A) Cut the nozzle of the cartridge at a 45-degree angle and apply a continuous bead using a caulking gun. Maintain steady pressure for a consistent application. Smooth the sealant immediately with a suitable tool or wetted finger, and allow it to cure fully before subjecting it to moisture or stress.
A) Yes, once fully cured, Soudaseal 270HS can be sanded to achieve a smooth finish. It can also be painted with water-based systems and industrial varnishes, allowing seamless integration into various finishing processes.
A) Soudaseal 270HS is resistant to UV radiation, weather, and moisture. Its formulation prevents bubble formation even in high temperature and humidity conditions, ensuring long-term durability in outdoor environments.
A) Soudaseal 270HS maintains its flexibility and adhesive strength in high-temperature environments. It is designed to remain stable up to 90°C, making it suitable for demanding applications where heat resistance is crucial.
A) Soudaseal 270HS exhibits good resistance to water, aliphatic solvents, mineral oils, grease, and diluted inorganic acids and alkalis. However, it has poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.
A) Yes, Soudaseal 270HS is free of isocyanates, solvents, halogens, and acids. It is EC1 PLUS R certified for very low emissions, ensuring it meets stringent environmental and safety standards. The product is safe for indoor and outdoor use.
A) No, Soudaseal 270HS is solvent-free, silicone-free, and isocyanate-free, making it a safe and environmentally friendly choice for bonding and sealing applications.
A) Uncured Soudaseal 270HS can be cleaned using Soudal Swipex Cleaning Wipes. Simply wipe away excess material before it hardens to ensure a neat finish.
A) For cured adhesive sealant, use Soudal Sealant Remover Spray to soften the product before scraping it off mechanically.
A) Yes, Soudaseal 270HS’s flexibility and movement accommodation up to ±20% make it suitable for bonding in vibrating constructions like caravans, containers, and car bodies.
A) Soudaseal 270HS provides high adhesive strength, flexibility, and durability in automotive applications. It is ideal for elastic structural bonding in buses, trains, trucks, caravans, and trailers, accommodating vibration and movement while maintaining a tough bond.
A) Soudaseal 270HS is suitable for marine and aerospace applications due to its high adhesive strength, flexibility, and resistance to weather and UV radiation. It provides a secure bond that withstands vibration and harsh environmental conditions.
A) Yes, Soudaseal 270HS is ideal for structural bonding between metal surfaces, coated surfaces, and various plastics. It provides a strong, durable bond that accommodates movement and prevents corrosion.
A) Yes, Soudaseal 270HS is perfect for sealing joints between metal plates. It provides a flexible yet rigid bond that handles movement and prevents corrosion.
A) Store Soudaseal 270HS in its original, unopened packaging in a cool, dry place away from direct sunlight and extreme temperatures. Proper storage ensures the product remains effective for up to 12 months.
A) No, Soudaseal 270HS is non-staining and offers a clean finish, making it suitable for visible joints. It also features a hydrophobic effect that prevents water penetration and staining.
A) Soudaseal 270HS has a maximum tensile strength of 2.80 N/mm² and an elasticity modulus of 2.00 N/mm², providing high adhesive strength and rigidity once fully cured.
A) Soudaseal 270HS stands out for its high modulus technology, superior adhesive strength, and flexibility. It is EC1 PLUS R certified, UV resistant, non-staining, and bubble-free. Its quick curing, sanding, and painting capabilities make it a reliable choice for construction, automotive, marine, and industrial applications.
Coming Soon
Description
Application
FAQ's
Data Sheets
