What is MS Polymer Sealant?

MS Polymer Sealant is based on silicone polymers and cure to form a tough flexible rubber suitable for both household and industrial applications. Hybrid MS Polymer is Versatility, high performance and ease of use. KASTAR Hybrid MS Polymer mix the strength of polyurethane with the insulating properties of silicone, creating a product with high-performance adhesive capabilities that combine the advantages of the two materials.

The range includes Four types of adhesives, aimed at different uses:

KASTAR971 Muilti-seal
KASTAR972 Standard&Professional
KASTAR976: Anti-Mildew
KASTAR977: Crystal
KASTAR978: Superfast High Tack

Here are some outstanding features of MS glue:

1. Extensiveness of bonding to the substrate
Due to the low surface energy and high penetration of the base polymer (silyl-terminated polyether), MS glue has good wetting ability to most inorganic, metal and plastic substrates, and thus can produce good adhesion to the substrate.

2. Excellent weather resistance and durability
The silyl-terminated polyether uses polyether as the long-chain and ends with a siloxy group. The polyether long chain has the characteristics of low unsaturation, high molecular weight and narrow distribution, and the end group is a hydrolyzable siloxane group. MS glue will form a network structure connected by flexible polyether long chains with Si-O-Si bond as the crosslinking point after humidity curing at room temperature. This system not only has excellent weather resistance, water resistance, aging resistance and durability, but also Moreover, it can effectively suppress and avoid the surface cracks of the sealant after long-term use.

3. Environmental protection
Silyl-terminated polyether is a long-chain structure of siloxy-terminated polyether, which does not contain toxic isocyanate groups and free isocyanates like PU. The silyl-terminated polyether has low viscosity and good workability, without the need to use organic solvents to adjust the process performance of the formulation. Therefore, MS glue can completely do not add any organic solvents, and its total volatile organic compound (VOC) is very low.

4. Paintability
The surface of ordinary silicone sealant cannot be painted and colored, and can only be adjusted to the user’s desired color according to user needs; while silane-modified polyether glue can be painted and colored, and has good paintability.