Silyl-terminated polymers provide environmental resistance, superior adhesion properties, and fast cures, combining many of the benefits of polyurethane and silicone sealants into one material. They are generally flexible, durable, tear resistant, and hold up well in low-temperature environments. OSi Holding Limited supplies silyl terminated polymers in a variety of colors.
Silyl-modified polymers (SMP; also silane-modified polymers, modified-silane polymers, MS polymers, silane-terminated polymers, etc.) are polymers terminating with a silyl group. SMPs are the main components in solvent-free and isocyanate-free sealant and adhesive products. Typically the sealant products manufactured with silyl-modified polymers have good adhesion on a wide range of substrate materials and have good temperature and UV resistance.
OSi HIOSil MS260 is a Silyl-Terminated Polyether (STPE) used as a base resin for producing high-performance moisture cure sealants, adhesives, and coatings. OSi HIOSil MS260 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.
The below values are not intended for use in preparing specifications. Please confirm with us prior to writing specifications on this product.
Product Name: OSi HIOSil MS260
Chemical Name: Silyl-Terminated Polyether
Appearance: Light yellow liquid
Hue (Gardner Color Number): G3 or less
Viscosity: 4800 – 9200 cP
Moisture: 0.1 wt% or less / 1,000ppm or less
pH: 6.0 to 8.0
1. A high modulus polymer with:
a) Low viscosity
b) Broad adhesion profile
c) Wide formulating latitude
2. A formulated product based on OSi HIOSil MS260 will result in:
a) Low viscosity
b) Higher hardness
c) Faster tack free time
USA TSCA Complies
Japan KASHINHOU/ENCS Complies
Europe EINECS, ELINCS Polymer Exempt
Canada DSL Complies
PHR
OSi HIOSil MS260 100
Plasticizer 55
Calcium Carbonate 120
Titanium Dioxide 20
Thixotrope 2
UV Absorber 1
HALS 1
Dehydration Agent 2
Adhesion Promoter 3
Hardening Catalyst 2
• Skin Formation Time (min): 20
• Modulus 100 (psi/MPa): 152 / 1.05
• Hardness (Shore A): 41
• Tensile Strength (psi/MPa): 264 / 1.82
• Elongation (%): 330
• Compound Viscosity, HA (cP): 1,220,000
Brookfield Viscometer (No. 7 rotor, 2 rpm)
• Flooring Adhesives
• Industrial Adhesives
• General Adhesive
OSi HIOSil MS260 can be formulated into adhesives, sealants, and/or coatings utilizing either a hot or cold process. Please contact an OSi Holding Limited representative for more information.
• 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.
• Please speak with an OSi Holding Limited representative regarding bulk storage requirements.
This technical data sheet is only used for internal quality control within OSi Holding Limited.
All rights reserved.
Tote: 2,205 lbs/1,000 kg
Bulk: 45,000 lbs/20,000 kg
