 |
| Quantity: | |
|---|---|
HM-WR49
Howell
3506100010
HM-WR49 sits in the neutral curing, one-component silicone rubber class, pairing low modulus behavior with high elasticity for weather-resistant duty in architectural, decorative and industrial construction. Thixotropy keeps the rubber from sagging in building joints, which is what fits it to non-structural bonding together with the weather resistance and waterproof sealing of curtain walls, and a wide spread of climate temperatures is acceptable.
Neutral curing,
High modulus
Excellent elasticity
Weather Resistant
No sagging
Fed from a manual or pneumatic glue gun, HM-WR49 is used exactly as supplied - no stirring step exists - and it begins curing only once water vapor in the air reaches it.
Surface condition is decisive before sizing: the base material has to be dry and clear of pollution such as oil, grease and dust, and on the substrates this grade is designed for the page states good adhesion and compatibility without any primer.
Tool the bead while the surface is still workable, since repair stops being possible once it has crusted, and design the joint so the sealant is never bonded on three sides.
Testing rests with the customer, who should conduct an appropriate test of the recommended sealant for the specific application and decide whether its performance meets their requirements. Nanjing Howell New Material Technology Co., Ltd. can also test the adhesion of Howell products to the materials chosen for the project and will supply product recommendations and surface cleaning methods in writing.
A compatibility test is required before engineering use, covering engineering materials such as aluminum profiles, gaskets, pressure strips and double-sided adhesive tape against the sealant. The customer may run it, or send those materials to the Nanjing Howell laboratory for the compatibility test and a written result.
Need the Right Sealant for Your Application?
Tell us your substrate, application, required color, packaging, quantity and performance requirements. Our team can recommend you the most suitable one for your project.
E-mail：inquiry@howseal.com
