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Using Sikaflex to Bond Non-skid Deck Coverings



Bonding Anti-Slip Deck Coverings

Description of the Application

Deck coverings or mats with a synthetic resin composition provide a safe, non-slip surface to walk on, as well as protecting the deck against damage and leaks. The use of a one-part polyurethane adhesive maximizes the effectiveness of the covering material, facilitates installation and ensures a professional finish.

Proprietary deck coverings in common use include:

TBS Anti-slide
Treadmaster Lay Tech
PolygripNautoflex
NoramentFloormaster
Marine Deck 2000Gates Rubber Co.
FlexiteakAikona
EsthecExa
Futureteak Deck King
Vetus Non Slip Deck Covering

One-part polyurethane adhesives give excellent results with these products. Installation is simple and straightforward, while the long term performance characteristics of the adhesive offer a number of significant benefits.

Instructions for Bonding Anti-Slip Deck Coverings

      Preparing the Deck Covering

The covering material must be free from release agents or other media used in the production process. Use appropriate solvent recommended by the manufacturer
On nonporous coverings, the side that is to be bonded should be cleaned with Sika Aktivator, using a clean, lint-free rag or a paper towel. Change the rag frequently!
Flash-off: 10 minutes (min) to 2 hrs (max)

Due to the many variations of deck coverings, a test to check for subsequent adhesion is always recommended

Preparation of the Substrate
Fiberglass Decks

Heavily soiled surfaces should first be cleaned off with a pure solvent like, Sika Remover-208, to remove the worst of the soiling
Lightly abrade the contact area with a very fine sanding pad
Remove the dust with a vacuum cleaner
Clean the substrate with Sika Aktivator, using a clean, lint-free rag or a paper towel. Change the rag frequently!
Flash-off: 10 minutes (min) to 2 hrs. (max)

Timber Decks


Abrade the contact area on the deck with a sanding pad (80/100 grit)
Remove the dust with a vacuum cleaner
Apply a thin, continuous coat of primer using a clean brush or a roller felt applicator.
Timber other than Teak- Sika Primer-215
Drying times:
Sika Primer-215 - 30 minutes (min) to 24 hours (max)

Aluminium or Steel Decks


Steel: Grind (36 P grit) or sand-blast the surface in accordance with DIN 55 928, part 4, using S.A. 2.5 mm
Aluminium: Lightly sweep-blast the surface
Thoroughly vacuum clean the surface
If the area is contaminated, treat the surface with Sika Aktivator using a rubber scraper
Flash-off: 10 minutes (min) to 2 hours (max)
Avoid dust or other contamination until the next step has been carried out
Apply a continuous coating of two-component SikaCor ZP Primer within 2 hours of the Sika Aktivator treatment to the surface, using a clean brush or a roller at a consumption of approx. 200 gr/m2 or 80 um thickness. See page 41 for instructions on usage

Aluminium or Steel Decks, Coated with a Two-Component Paint, Varnish or Fairing Compound


Ensure compatibility of the coated metal deck with Sikaflex-291
Lightly abrade the contact area with a very fine sanding pad
Treat the substrate with Sika Aktivator, using a clean, lint-free rag, foam pad or paper towel. Change the rag frequently!
Flash-off: 10 minutes (min) to 2 hours (max)

The Sika Marine Dispenser demonstrating its efficiency (below)

Do not use Sika Aktivator or any other cleaning agent or solvent for cleaning purposes

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