Timber and teak decks are of functional and esthetical importance. Since maritime conditions are very harsh, watertight, Hi-UV-resistant deck caulking adhesive and sealants are absolutely essential.

Bedding, Caulking and Teak Deck Bonding

deck to hull bonding of a super yacht

Bedding and Bonding Panels and Sheet Material

Sikaflex®-298 is a low-viscous, yet thixotropic full-bodied adhesive that has been specially formulated for the waterproof, flexible bonding of timber strip decking, deck planking, plastic deck coverings and prefabricated timber deck panels. The product is very easy to work with, and supplies professional results every time. The permanently elastic adhesive layer has a cushioning effect, absorbs shocks and minimises the transmission of impact sound. 

 

Bonding applications
Decks (timber)
Ant-slip deck coverings

Deck Caulking on Leisure Boats and Yachts

For timber and teak decks that need to be completely watertight and weather-resistant, Sika has developed Sikaflex®-290 DC PRO. This extremely easy-to-use, Hi-UV-resistant, one component polyurethane deck-caulking compound can, once cured, be flush-sanded with the deck to supply a beautifully neat, clean finish.
Sika's Marine Teak Deck Maintenance System preserves and cares for new and weathered teakwood as well as for all other kinds of wood applied above the waterline. Sikaflex®-290 DC PRO and Sikaflex®-298 are major elements of Sika's Totally Glued Teak Decking System.

Caulking Applications
Deck Caulking
Deck levelling and bedding

two men's applying adhesive to caulk the deck

Frequently Asked Questions

How to install a teak deck?

To ensure a good result after applying your teak deck download the application guideline and follow instructions thoroughly. As surface preparation is key to remove and to clean the surface of dust, dirt, grease, oil, etc. Prepare substrate according to pre-treatment chart.


For the next step, we recommend to use the bedding compound Sikaflex®-298 and to pre-treat the wood plank prior to embedding use Sika® Primer-290 DC or Sika® Multiprimer Marine. After placing the planks into position caulk the joints with Sikaflex®-290 DC PRO, Sika’s teak deck caulking material. Sand deck with a belt sander or flat plate after safe sanding time as indicated in the guidelines.

For further details read our application guidelines and our pre-treatment chart.

Posted on: 12/11/2019
How to decide what repair solution is needed for your damaged wood?

Water intrusion between wood and deck may lead to fouling of the wood. It is recommended to control the deck periodically and repair non-tight areas before the whole deck is affected or part of the wood detaches from the deck due to the wood expansion with permanent water contact.

Deciding whether or not a wooden deck needs to be repaired is not always easy.

  1. First, it must be established that a joint has failed or the wood has been damaged enough to cause a problem. Each and every joint should be closely inspected. Any points at which there is a small gap or crack in the caulk should be marked with distinctive chalk.
  2. Second, the wood surface should also be closely examined for undue wear, gashes, splitting or splintering and should be marked with chalk in a similar way. However, parts or all of the damaged planks should be replaced, according to how badly they are damaged.
For further details read our application guidelines and our pre-treatment chart.
Posted on: 12/11/2019
How to replace damaged teak planks?

To replace damaged teak planks from the deck first completely remove the caulking from the joints around any planks that are to be removed.

Remove the damaged plank, taking care not to damage the substrate.

Remove any old adhesives, bedding or other foreign matter from the substrate and remove the jointing material from around the edge of neighbouring planks.

Use Sikaflex®-298 as a bedding compound and pre-treat the teak planks with Sika® Multiprimer Marine or Sika® Primer-290 DC prior to the application according (check pre-treatment chart). Caulk the joints with Sikaflex®-290 DC PRO the teak deck caulking material. Sand deck with a belt sander or flat plate after safe sanding time as indicated in the guideline.

For further details read our application guidelines and our pre-treatment chart.

Posted on: 12/11/2019
How to maintain a wooden deck?

To maintain the color and appearance of a new teak deck we recommend Sika’s Teak Maintenance System. It avoids damage of the caulking joint and is fully compatible with the Sikaflex®-290 DC PRO caulked teak decks.

Step 1:
Mix SikaTeak® C+B with water in a ratio of 1:3
Apply the mixture with a scrubbing brush or sponge
Leave for 10 minutes before rinsing the deck with water

Step 2:
Apply a small amount of SikaTeak® Oil Neutral on a clean cloth or a roller
Allow oil to penetrate the wood for ca. 30 minutes before removing excesses with a cloth

For further details read our application guidelines and our pre-treatment chart.

Posted on: 12/11/2019