RLA Flex-Pro MS Grey 600ml Sausage Hybrid Polymer Sealant Adhesive

RLA Flex-Pro MS Sealant & Adhesive

RLA FLEX-PRO MS is a one-component sealant and adhesive based on silane modified polymer, which is a moisture cured sealant. Humidity and temperature can influence skin formation and curing speed, and the joint depth can also influence curing time. FLEX-PRO MS is free of solvents, isocyanates, silicones and PVC, and has very low VOC while curing. It performs good adhesion to most substrates and is suitable for most common construction materials, especially concrete, aluminium, masonry and glass, and it is compatible with most paint systems. Very good UV resistance means it can be used for both interior and exterior applications.

⠀Features & Benefits

• Remains elastic after curing and is very sustainable
• Highly flexible – 400% elongation at break
• Low emissions and very low VOC
• Good adhesion on both porous and non-porous substrates
• Excellent durability
• Good weathering resistance, colour stability and UV resistance
• Suitable for use on moist surfaces
• Good extrudability
• Paintable once fully cured
• Colourfast and non-staining
• Completely neutral – contains no solvents, isocyanates, acids, halogens or toxic components
• Does not support fungal growth

⠀Uses

• Sealing and bonding in the building & construction industry
• Bond breaker for all RLA acrylic membranes
• Elastic bonding in vibrating constructions
• Concrete expansion joints
• Sealing where acoustic properties are required
• Perimeter sealing around window and door frames
• Sealing of penetrations in walls or floors
• Brickwork, ceramics, stone, granite & marble
• Sanitary applications
• Other substrates including anodised aluminium, steel, glass, dry timbers, some tiles, treated wood, PVC and plastics

Always test adhesion to the substrate before starting a project.

⠀Specifications

• Appearance: Paste
• Specific gravity: 1.18 ± 0.02
• Shore A hardness (ISO R88-3 seconds): 32
• Skin formation at 23°C and 50% RH: 30 minutes
• Curing rate: 3mm in 24 hours at +23°C / 50% RH; 5mm in 5 days at +5°C / 50% RH
• 100% modulus: 0.45 MPa
• Tensile strength: 1.2 MPa
• Elongation at break (ASTM D 412): 400%
• Elastic recovery: 60%
• Shrinkage (ISO 0563): <1.5%
• Adhesion failure style: 100% CF
• Service temperature: -50°C to +120°C
• Application temperature: +5°C to +35°C
• UV resistance: No change (dry UV 300W at 25cm, six-week test)
• Shelf life: 12 months

⠀Joint Design

• Joints up to 12mm wide – width-to-depth ratio 1:1
• Joints over 12mm wide – width-to-depth ratio 2:1 (minimum joint depth 7mm, maximum joint width 35mm)
• Do not apply less than 6mm in width and depth. Minimum joint width for caulking around window frames is 10mm
• Use a tight-fitting, non-absorbent backing material such as an open-cell polyurethane or closed-cell polyethylene backer rod to prevent three-sided adhesion
• Do not use oil or tar-impregnated backing materials

⠀Coverage

Approximate linear metres from one 600ml sausage:

⠀Not Recommended For

• Structural bonding or transparent surfaces where the bond line is directly exposed to UV
• Chlorinated water such as swimming pools and spas, or constant salt water immersion
• Any material containing bitumen
• Structural glazing applications
• Cement-based substrates within 28 days of initial pour or set
• Trafficable joints greater than 6mm in width
• Application at temperatures below +5°C or above +35°C

⠀Available Colours

Grey, Black, White.

⠀Packaging

600ml sausage.