MS Polymer / Silyl-Terminated-Polyether

Siwin-M312

Silane Terminated Polyether Polymer

Description

Siwin-M312 is alkoxy silane terminated polyether polymer. It could be applied in moisture curing elastic sealant, elastic structure sealant and sealing coatings. Sealants based on Siwin-M312 not only have excellent adhesion properties, but also have adhesion to broad range of substrates. Different from polyurethane and silicone system, this formulation have no solvent and isocyanate, as well as no bubbles and odour generated from curing. It is especially suitable for construction industry, transportation industry and general industry application.

Physical Data

Properties and Features

◼ High Activity , High Modulus

◼ High transparence

◼ Good adhesion strength and tensile elasticity

◼ Fast curing, can use non-tin catalysts if needed

◼ Excellent aging,water,chemical and yellowing resistance

◼ Excellent storage stability

◼ Solvent free , odourless , eco-friendly

◼ Could be blended with other Risun polymers

Applications

Siwin-M312 is used as base polymer in sealants, encapsulate adhesives and coatings. The curing mode of the polymer is moisture curing, it can be made into a single component or two-components system.

◼ High Modulus sealant

◼ Transportation industry elastic sealant

◼ Personal DIY sealant

◼ Eco-friendly decoration sealant

Instructions

Siwin-M312 can be quickly dissolved in ordinary organic solvents (such as ethanol), but almost insoluble in water. So the raw materials in the formula system are mostly oil-soluble substances. Siwin-M312 curing mechanism, silane of both ends with the help of the catalyst react with water forming hydrolysis to generate Silanol, Silanol is crosslinked with catalyst to form a siloxane bond, resulting in a network-like structure. Water is a very important factor during the storage and processing.In order to stabilize the processing and storage, it must add a certain amount of chemical water removal agent, we recommend the use of vinyl trimethoxysilane. Conventional mixing process can be suitable for Siwin-M312. For more technical support, please consult our technical engineers.

Storage

If unopened and stored at 4℃-30℃ dry environment, the shelf life is 12 months. Use it as soon as possible if opened, the remain products should be resealed and stored at 4℃-30℃ dry environment. But if shelf life expired, you can still use it only after you confirm the product is qualified.

Cleaning

This product can be removed before curing by the general solvent, such as ethanol, dimethyl carbonate. After curing can only be removed by mechanical means.

Package

◼ 50kg plastic drum lined with aluminum foil bag

◼ 200kg drum lined with aluminum foil bag

◼ 1000kg IBC