Bostik MSR DC Advanced
For natural teak deck seams.
Teak deck seam sealant for watertight seams between deck planks, in new work and recaulking.
View Bostik MSR DC AdvancedMarine application
Teak Deck Caulking
Teak deck caulking seals the seams between deck planks to keep the deck watertight. It applies to new decks and to recaulking existing seams once the old caulking has been removed and the seam prepared.
Typical use cases
- —Caulking seams on new teak decks
- —Recaulking existing teak decks
- —Repairing individual seams
Important selection factors
- —Natural teak versus synthetic decking
- —Seam preparation
- —Required seam color
Natural teak or synthetic decking?
Natural teak and synthetic decking need separate product checks. Iris supplies MSR DC Advanced for natural teak seams in Black. For synthetic teak systems, STR220A may be relevant where the decking system and Bostik guidance support it. Tell us the decking brand and whether you are caulking a seam or sealing a perimeter so we can review the fit.
MSR DC Advanced is not positioned for synthetic decking, and STR220A is not a fit for every synthetic deck — the decking brand, system, seam and preparation are reviewed before a recommendation.
Common substrates & materials
- —Natural teak deck planks
- —Synthetic decking — brand-specific review required
Common problems & failure considerations
- —Poorly prepared seams or remaining old caulking
- —Synthetic decking that requires a specific system
- —Colors not currently stocked
Related Bostik products
Products used for teak deck caulking
Suitability depends on the substrates and conditions of your application. If you are unsure, use Application Support.
Bostik STR220A
For certain synthetic teak caulking or perimeter applications, after review of the decking brand and system.
Multipurpose elastic sealant for marine joints and seams, stocked in Black, Gray and White, with a Bostik-tested role in certain synthetic teak applications.
View Bostik STR220ASurface preparation considerations
Seams must be properly prepared before caulking. Seam preparation questions are reviewed by Iris before recommending a product.
Common questions
What is MSR DC Advanced used for?
It is a Bostik seam sealant for natural teak decks — watertight seams between planks in new work and recaulking. It is not positioned for synthetic decking.
What about synthetic teak decking?
STR220A has a Bostik-tested role in certain synthetic teak caulking and perimeter applications. The decking brand, system, seam and preparation are reviewed before it is recommended.
Which colors are available?
Iris currently stocks MSR DC Advanced in Black. Other color requirements are reviewed individually.
When should the application be reviewed?
When the decking is synthetic, when seam preparation is uncertain, or when a color other than Black is required.
Not sure which product fits?
Tell us about the materials and conditions and the Iris team will help narrow the appropriate Bostik options.