Sikaflex 221 300ml - white

Chemical basis: Silane-terminated polymer (STP)

Color (CQP001-1): White

Curing mechanism: moisture curing

Density before hardening: 1.3kg/l

Stability: good

Application temperature: from 5 to 40°C

Skin formation time (CQP019-1): 60 minutes (23°C)

Volume change (CQP014-1): -5%.

Shore A hardness (CQP023-1 / ISO 7619-1): 40

Tensile strength (CQP036-1 / ISO 527): 1.8 MPa

Elongation at break (CQP036-1 / ISO 527): 500

Tear strength (CQP045-1 / ISO 34): 7 N/mm

Shelf life (CQP016-1): 12 months when stored below 25°C

Sikaflex®-221

Sikaflex®-221 is a multifunctional adhesive and sealant with a broad adhesion spectrum. It is also a versatile one-component polyurethane adhesive and sealant for a wide range of surfaces, such as metals, primers and coatings (two-component systems), ceramic materials, and plastics. Sikaflex®-221 is suitable for the production of permanently elastic joints.

Good adhesion to a variety of surfaces
Resistant to aging

Sandable and repaintable
Product benefits

Good adhesion to a variety of surfaces
Resistant to aging

Sandable and repaintable
Tested according to EN45545-2 R1/R7 HL3

Non-corrosive
Low odor

Application:

Sikaflex®-221 adheres well to a variety of surfaces and is suitable for elastic, permanent waterproofing. Suitable surfaces include metals, primers and paints (two-component systems), ceramic materials, and plastics. Observe the manufacturer's recommendations before using Sikaflex®-221 on materials susceptible to stress cracking. Pre-tests must be performed with original materials to avoid stress cracking. This product is suitable for experienced users only. To ensure adhesion and material compatibility, preliminary tests must be conducted with original materials and under appropriate conditions.