Kaneka MS PolymerTM, a silyl terminated polyether, is a raw ...

Kaneka MS Polymer TM ; your premium choice
Kaneka MS Polymer TM , a silyl terminated polyether, is a raw material base resin for producing sealants,
adhesives and coatings. Its outstanding performances make MS based products unique and beneficial.
The advantages are well recognised by formulators, applicators, designers and engineers throughout the world.
MS polymer is a functionalised polyether with methoxysilane terminal groups. The polymer
consists of a polyether backbone with silyl functional groups on both ends. Several different grades of
MS polymers are available, differing in the degree of functionalisation and the structure of the backbone.
The curing mechanism of MS polymers is essentially a two step process. First hydrolysis takes place and the
methoxy silane groups (-Si(OCH 3
) x
) are changed into silanol groups (-Si(OH) x
). These silanols then condense
together to siloxane groups (-Si-O-Si-) which form a network of cross linked polymers. To make this curing
process happen, both water and a catalyst should be present. This implicates that the polymer has excellent
storage stability. As long as there is no catalyst added, even in contact with water the polymer remains very stable.
Kaneka MS Polymer TM can produce versatile sealants and adhesives using various ingredients like fillers,
plasticizers, silanes, and catalysts. The excellent stability of Kaneka MS Polymer TM enables us to use
both sealant production procedures like physical/heat drying (hot process) and chemical/silane drying
(cold process) of those ingredients with superior flexibility to have the best solution for the customer’s
production activity and product design.
Acrylic-modified MS Polymers are also available, which is a chemical hybrid of silylated
polyethers and acrylic polymers with silyl functionalised pendant group. The overall molecular
weight, the types and ratio of monomers, the methoxysilane content and the ratio acrylic to silylated
polyether, all influence the properties of the end product. The acrylic modification improves the MS
Polymer further in UV stability and adhesion to certain types of plastics dependent on polymer grade.
Additional benefits can be achieved by blending MS Polymer with other polymers. MS Polymer can be
blended with epoxy resins to formulate high strength products. The heterogenic matrix / domain structure
consists of the black epoxy domains functioning as hard segments and elastic MS polymer matrix.
This structure is useful to make sealants/adhesives/coatings which are high strength but still elastic.
The versatile finished products based on MS Polymer TM are used for a wide variety of applications such as:
Construction: sealing façade joints requiring ISO 11600 conformity, sealing natural stone joints and
perimeter joints, sealing/bonding a variety of structures such as stones, plastics, metals, etc., tile adhesives
for special vibration damping applications, panel adhesives, parquet adhesives, waterproof coatings
Industry: panel adhesives, sealants/adhesives in the transportation industry
DIY: multi-purpose sealants/adhesives, mirror adhesives
The structure of MS Polymer TM , polyether backbone and silyl functional groups, offers a variety of benefits
to the MS-based finished products as shown below:
- superior adhesion to a wide variety of materials even without primer
- applicable in a wide range of situations and temperature
- excellent elastic behaviour and durability
- great mechanical properties
- good storage stability
- no bubbling in the curing process
- relatively quick curing
- weather resistance
- no isocyanate and no solvents
- easy handling
- low risk of staining
- overpaintable with most types of paints
- odourless