Name: BOSTIK STR220A
Brand: Bostik Findley (Malaysia) Sdn Bhd
SKU: BOSTIK STR220A

Main features

Elastic SMP Joint Bonding
30-Minute Skin Formation
Excellent UV and Weather Resistance

Product Description

Bostik STR220A is a one-component silyl modified polymer (SMP) adhesive/sealant for elastic bonding and joint sealing in transportation assemblies. It moisture cures; at 20 deg C and 50% RH, skin formation is about 30 minutes and cure development is about 2 mm after 24 hours. After cure, the material measures Shore A 44, reaches 220% elongation at break, and has a -40 to 121 deg C temperature-resistance range. STR220A adheres to metals, glass, PVC, polyester, and coated wood with defined surface-preparation requirements. Applications include buses, RVs, trailers, and related transportation joints and seams.

Key features

Elastic SMP Joints: One-component SMP material is used for bonding and sealing elastic joints and seams.
30-Minute Skin Formation: Skin forming time is about 30 minutes at 20 deg C and 50% RH.
UV and Weather Resistance: Cured UV and weather resistance is rated Excellent.

Applications

Bonding and sealing joints in buses, RVs, trailers, and related transportation assemblies.

TDS, SDS & Technical Documents

STR220A_tds_091720

English (Technical Data Sheet (TDS))

Technical Specifications

General Properties

Specific Gravity

1.6

Physical Properties

Skin Time

30 min.

Mechanical Properties

Elongation

220 %

Thermal Properties

Temperature Resistance

-40°C to 121 ˚C

Additional Information

Technical properties

As-supplied and application properties

Property	Value	Unit	Method / condition
Basic material	Silyl Modified Polymer (SMP)		As supplied
Curing method	Moisture		One-component cure mechanism
Specific gravity	1.6	g/ml	As supplied
Skin forming time	30	min	20 deg C and 50% RH
Curing speed after 24 hrs	2	mm	20 deg C and 50% RH
Application temperature	5 to 35	deg C	Extrusion/application range
Shelf life	12	months	Original unopened container; dry place at 5 to 35 deg C