PU 40
​Description
Zettex PU 40 is a permanently elastic, one component construction and joint sealant based on Polyurethane. For almost all common surfaces in construction and industry. Zettex PU 40 has excellent adhesion properties and is suitable for horizontal dilation and construction joints.

Chemical nature

Polyurethane

Adventages
• Permanently flexible.
• Short cut-off string.
• Stable- No Shrinkage.
• Bonds and seals at the same time.
• Adhesion to a wide range of substrates.
• Replaces rivets and mechanical fasteners.
• Non-sag consistency- Good thixotropy.
• Vibration and sound dampening properties.
• Excellent resistance to ageing, weathering- suitable for indoor and outdoor use.
• Over- paintable with many water/solvent based paints (pre-tests are recommended).
​Packaging
• Cartridge 310ml
• Sausage 600 ml
​Application
• The surface must be clean, dry, free of water, oil, grease or rust and of sound quality. Remove all kind of residues or uncured glue with Zettex Profi Cleaner. Pre-test substrates for adhesion. Cleaners and primers may be required to achieve an optimal adhesion.
• Long term resistance to fresh water, seawater, lime water, caustic solutions and cleaning agents . Short term resistance to petrol, grease and mineral oil. Not resistant to organic acids, concentrated mineral
acids or solvents.
• Pierce through the protective membrane in the front threaded section. Screw on the plastic nozzle and
cut it at an angle according to the desired bead thickness and profile. Fit the cartridge into the Zettex Caulkgun and extrude the adhesive/sealant carefull preventing air entrapment. Once opened, packs should be used up within a relatively short time. The optimum operating temperature for both substrate and sealant is between 15 and 25 degrees.
• Avoid exposure to high levels of chlorine. Do not cure in the presence of silicone sealants. When applying sealant, avoid air entrapment. After all, clean tools with the Zettex Profi Cleaner and hands with Zettex Cleaning Wipes. Cured materials can only be removed mechanically.

Areas of Application
• Zettex PU 40 is a multipurpose, high performance, sealant and elastic adhesive. Bonds well to a wide variety of substrates and enables permanent elastic sealing with high adhesive strength. Suitable substrates are : concrete, wood, metal, painted surfaces and plastics.
Features Specification
Appearance Thixotroic paste
Colour White, grey, black. Others on request
Chemical Nature Polyurethane
Curing Mechanism Moisture-curing
Curing through volume [mm] 3 (1 day at 23°C
and 50% r.h.)
2,0-3,0
Shore A (23°C and 50% r.h.; DIN 53505) 35-45
Density [g/cc] Black: 1,31 +- 0,02
Grey: 1,33 +- 0,02
White: 1,35 +- 0,02
Tack-free time [min] (23°C and 50% r.h.) 45-75
Tensile strength [N/mm2](ISO 37 DIN 53504) >1.8
Elongation [%] (ISO 37 DIN 53504) ≥ 450
Application temperature (℃) from +5℃ till +40℃
Temperature Resistance (℃) -40℃/+90℃, short period up to 120℃
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