552 High Strength Elastic Hybrid Adhesive Sealant

552 High Strength Elastic Hybrid Adhesive Sealant

UV Resistant, Permanently Elastic Structural Adhesive
By: Sika

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Sika’s Hybrid 500 Series is a unique range of adhesives and sealants that combine the strength of polyurethane technology with the durability of modified silicones.
The Hybrid 500 Series can be used for all bonding and sealing applications, with the added benefit of adhesion to a wide range of substrates with less surface preparation.

Sikaflex-552 is a truly non-sagging, high strength, permanently elastic, hybrid (silane terminated polymer) structural adhesive.
Typical uses include bonding bulkheads, toe rails, shower stalls, cabinets, and port and hatch frames -- anywhere maximum UV resistance is desired. Otherwise use Sika's 292 structural adhesive, with its somewhat higher strength.
552 can also be used for bonding of wood or metal floors to subfloor or metallic frames, bonding of exterior or interior (yes!) panels and walls, and bonding of trim and moldings.

Compatible substrate materials include wood, metals, primers and two-part paint coatings, ceramic materials, and plastics.

• Significantly enhanced UV resistance (non-yellowing); resistant to aging and weathering
• Fast skin-over (40 minutes), high initial green strength
• Effective for large gap-filling applications
• Its permanent elasticity makes it ideal for bonding, especially dissimilar materials
• You can improve the adhesion of this product by pre-treating with Sika Cleaner 226
• Please refer to the Sika Primer Chart, on the Sika Industry USA website, for specific application information for both products and substrates

Sika has published a number of excellent technical "how to" documents for common marine applications using their Aktivators, Primers, and Adhesive/Sealants.
Topics covered include bedding and sealing hardware, rub rails, plastic windows, mineral glass windows, wood, UV exposure issues, etc.

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