External wall thermal insulation coating is a coating that combines thermal insulation, decoration and waterproof functions, and is widely used in building external wall thermal insulation systems. It can effectively improve the thermal insulation performance and energy-saving effect of buildings, and also has excellent decorative effects and waterproof performance. Exterior wall insulation coatings are suitable for all types of buildings, including residential, commercial and industrial buildings.
The following are common key properties and corresponding testing instruments for exterior wall insulation coatings:
| Performance name | Testing equipment |
|---|---|
| thickness | Coating Thickness Gauge |
| Bond strength | Tensile testing machine |
| weather resistance | Xenon lamp aging test machine |
| Crack resistance | Acupuncture Tester |
| chromatic aberration | Color Comparator |
| density | Density meter |
| Alkali resistance | PH meter |
The following are the detection steps corresponding to each performance:
Thickness: Coating thickness is measured using a coating Thickness Gauge.
Adhesive Strength: Use a Tensile Testing Machine to test the adhesive strength between the coating and the base layer.
Weather resistance: Place the sample in a xenon lamp aging Tester for accelerated aging, and then detect its performance changes by visual observation, appearance evaluation and other methods.
Crack resistance: use a needle Tester to test the tensile properties of the coating.
Color difference: Use a color contrast instrument to detect the color of the coating.
Density: Test the density of the paint using a densitometer.
Alkali resistance: Use a pH meter to test the pH of the coating to judge its alkali resistance.
