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Arma-Chek Mastic is a high quality sealant for use of Arma-Chek D and Arma-Chek R. Arma-Chek Mastic is designed for making elastic joints that require high strength.
  • Very good UV-resistance and ageing properties
  • Permanently elastic within temperatures from -40°C to +120°C
  • Neutral, odorless and fast curing
  • Paint compatible with most industrial paint or lacquer systems (both alkyd resin and dispersion based). Note: Due to the large scale of different types ofindustrial paints a paint compatibility test is recommended
» Technical Data Sheet

PropertiesValuesRemarks
MaterialSilane Modified Polymer (SMP)
Curing method by air moisture
Max. Surface Temperature +120° C
Min. Surface Temperature -40° C
Min. Surface Temperature-50° CFor temperatures below -40° C, please consult our Technical Department. Tel. 0161 287 7100 · Fax 0161 633 2685
Application Temperature +5° C to +35° C
Skin Formation approx 10 min.at 20° C and 50% relative humidity
Hardening ca. 3mm per 24hat 20° C and 50% relative humidity
Shore Hardness approx. 55Test acc. to DIN 52 505
Change in Volume < 3%Test acc. to DIN 52 451
Viscosity approx. 300 Pa
Density approx. 1.4 g/ml
Tensile Strength approx. 1.7 MpaTest acc. to DIN 53 504 & ISO 37
Elongation approx. 250%Test acc. to DIN 53 504 & ISO 37
Tensile Transverse Resistance approx. 2.5 MPaTest acc. to DIN 53 283 & ASTM D1002
Tear Strength approx. 16 N/mm Test acc. to DIN 53 515 & ISO 34
Resistance to Impact: Very goodFor more information, please consult our Technical Department. Tel. 0161 287 7100 · Fax 0161 633 2685
UV: Very Good
Health AspectsSolvent-, isocyanate- and PVC-free
UsageArma-Chek Mastic can easily be extruded with a hand- or air-pressure gun at temperatures between 5°C and 35°C. In sealing applications Arma-Chek Mastic should be tooled or smoothed within 10 minutes (at 20°C / 50% R.H.) with a spatula or putty knife, occasionally moistened with a soap solution. Avoid soap solution penetrating between Arma-Chek overlap and sealant, which will result in loss of adhesion. In general the applied thickness of the mastic should be min. 3mm.

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