SikaHyflex® GA-WS-305
Weatherproofing sealant
Description
SikaHyflex® GA-WS-305 is a neutralcuring
silicone sealant with a high
movement capability and excellent
adhesion to a wide range of substrates.
Product Benefits
– Meets requirements of ASTM C
920 (class 50), TT-S00230C, TTS001543A
– Outstanding UV and weathering
resistance
– Adheres well to many substrates
including glass, metals, coated
and painted metals, plastics and
wood
– Provided with CE-mark according
to EN 15651-1:2012, F EXT-INT
CC 25LM, EN 15651-2:2012, G
CC 25LM, certified by Control
Body 111
Areas of Application
SikaHyflex® GA-WS-305 can be used
for weatherproofing and sealing
applications where durability under
severe conditions is required.
SikaHyflex® GA-WS-305 is particularly
suited as a weather seal for curtain
walling and windows.
This product is suitable for professional
experienced users only.
Tests with actual substrates and
conditions have to be performed to
ensure adhesion and material
compatibility
Application Limits
Do not use SikaHyflex® GA-WS-305 on
pre-stressed polyacrylate and
polycarbonate elements as it may
cause environmental stress cracking
(crazing).
The compatibility of gaskets,
backer rods and other accessory
materials with SikaHyflex® GA-WS-305
must be tested in advance.
Joints deeper than 15 mm have to
be avoided.
The above information is offered
for general guidance only. Advice
on specific applications will be
given on request.