SikaLastomer-511 Sealant 300ml Off White

Retains its flexibility without becoming brittle

If you're planning to work on DIY boat/RV repairs over the weekend, make sure you're using the best products for the job. The SikaLastomer-511 Sealant is specifically formulated for any smooth surface where an effective water and vapour barrier across a joint is required. Ideal for use in sandwich panel freezer and cool store construction, this tacky sealant retains its flexibility without becoming brittle.

SikaLastomer-511 Sealant Features:

• Updated version of the Sika Mastic SNB
• Excellent adhesion
• Excellent water resistance
• Non-corrosive to metals
• No presence of voids, cracks, separation or breakdown of the compound
• The tacky sealant retains its flexibility without becoming brittle and with time forms a slight skin
• Ideal for sealing marine deck fittings and hardware where future disassembly could be required
• Colour: Off-white
• Size: 300ml

SikaLastomer-511 Sealant Specifications:

• Chemical base: Butyl
• Colour: Off-white
• Density (uncured): 1.3 +/- 0.6 kg/l
• Total solids: 85% minimum
• Flexibility AAMA 800-92 (ASTM C 734): No cracking or loss of adhesion at -51°C
• Staining (ASTM D 925): No deterioration of painted surface to Galvalume, Galvanised, SPE, and Kynar 500
• Slump (ASTM D 2202): 2.54 mm @ 50°C / 5.08 mm @ 70°C
• Skin formation time @ 73°F (23°C) / 50% r.h.: Soft, tacky, and engageable for up to 6 months after initial application
• Shrinkage (ASTM D 2453): 16%
• Corrosivity: No darkening, etching, or salt deposits on metal
• Heat ageing (ASTM C-792-75, C-661-91, D 2240-92): No cracking / chalking
• Static water head test (MBMA ice damming): Passed up to 152.4 mm after 24 hours using a double lok or triple lok panel
• Water Penetration (ASTM E 1646): No water leakage (on a double lok or triple lok panel)
• Service temperature permanent: -51°C to 104°C
• Shelf life (storage below 80°F (27°C)): 12 months from date of manufacture in unopened container

Note: Not recommended as an underwater sealant

Product Data Sheet

Safety Data Sheet