Typical Formulation Ingredients
Phase
Ingredient
Parts by weight
A
STPU polymer (Polymer ST 77 (EVONIK))
A
Plasticizer (Plasticiser 860 (EVONIK))
A
Wetting and dispersing additive (Tegomer® DA 646 (EVONIK)
A
Moisture scavanger (Dynasylan® VTMO (EVONIK))
A
Filler 1 (Socal® U1S2 (Solvay))
A
Filler 2 (Imerseal 50 (Imerys))
A
Pigment (TiO2 (Kronos))
A
Hydrophobic fumed silica (AEROSIL® R 202 (EVONIK))
A
Light stabilizer Irganox® 1135 (BASF)
A
Adhesion promoter 1 (Dynasylan® AMMO (EVONIK))
A
Adhesion promoter 2 (Dynasylan® 1146 (EVONIK))
A
Catalyst (Catalyst TD 18 (EVONIK))
A
UV absorber 1 (Tinuvin® 292 (BASF))
A
UV absorber 2 (Tinuvin® 384-2 (BASF))
Resulting Properties
Viscosity SR 1: 370000 mPa s (DIN 53018/ISO 3210)
Viscosity SR 10: 71000 mPa s (DIN 53018/ISO 3210)
Skin Formation Time: 45 min. (23°C / 50% RH)
Curing Rate: 2.5 mm ((23°C / 50% RH)
Tensile Strength: 1.98 N/mm2 (ISO 37/ DIN 53504-S2)
Elongation: 520% (ISO 37/ DIN 53504-S2)
Elastic Modulus: 0.5 MPa (ISO 37/ DIN 53504-S2)
Shore A: 32 ( DIN ISO 7619 (DIN 53505)
Elastic Recovery: 58% (DIN EN ISO 7389 – H-specimen)
Elastic Modulus: 0.3 N/mm (DIN EN ISO 8339 – H-specimen)
Source: Evonik