How to identify the quality of acid silicone sealants?
Do you know how to identify acid silicone sealants? This article will explain in detail.
1. Uniformity of colloid
High-quality acetic cured silicone sealant colloid is fine, smooth and free of impurities. If you hear bubbles or particles and impurities on the surface of the colloid when applying the glue, it means that the sealant is of poor quality.
2. Odor
Acid silicone will emit a relatively pure acetic acid smell during the application process, without other irritating odors, but inferior sealants are prone to emit pungent industrial solvent odors due to excessive additives or solvents.
3. Displacement
High-quality acidic sealants applied on vertical substrates will show excellent adhesion and will not collapse or displace, but inferior sealants are easy to fall off and the surface of the colloid is easy to collapse.
4. Elasticity and tensile strength
Good quality acid silicone sealants have good elasticity and toughness after curing, and can return to their original shape after pressing or stretching. Inferior sealants may become hard, brittle, or fail to restore their shape after stretching.
5. Quality of the colloid after curing
High-quality acetic silicone sealant has a smooth curing surface, no obvious bubbles or cracks, and dries evenly. After curing, the volume of the colloid shrinks, cracks appear on the surface, and oil precipitates under the sun.