1 of 8 products in this brand
KANEKA MS POLYMER® S303H is a Silyl-Terminated Polyether (STPE) used as a base resin for producing high performance moisture cure sealants, adhesives, and coatings. MS Polymer™ S303H has performed successfully in various industrial applications and provides well-balanced properties such as durability, reactivity, and storage stability. This unique and highly valued balance of attributes is derived from the polyether polymer backbone coupled with the methyldimethoxysilane functional groups.

Chemical Family: Polyether, Silyl Terminated

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Knowde Enhanced TDS

Identification & Functionality

CASE Ingredients Functions

Applications & Uses

  • Joint Sealant
  • Building Envelope Sealant/Adhesive
  • Industrial Sealant/Adhesive
  • DIY Sealant/Adhesive/Caulk
  • Transportation Sealant/Adhesive
Processing and Mixing

MS POLYMER™ S303H can be formulated into adhesives, sealants, and/or coatings utilizing either a hot or cold process.


Physical Form
Light Yellow Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Hue (Gardner Color Number)max. G3
Moisture Contentmax. 1.000ppm

Packaging & Availability

Packaging Information
  • Bulk: 45,000 lbs/20,000 kg
  • Tote: 2,205 lbs/1,000 kg
  • Drum: 440 lbs/200 kg

Storage & Handling

Shelf Life
6 months
Storage And Handling
  • Guarantee of six-month shelf life from delivery if stored appropriately.
  • Containers must be stored below 50°C/122°F, stored inside, and remain tightly sealed.