Description
and Application
All kinds of deck fittings and hardware need to be securely
fixed and totally watertight. Some of these fittings are
also subjected, on occasion, to very high forces and torsional
stresses.
Poorly sealed joints can eventually result in serious
damage such as metal corrosion, osmosis and water leaks
causing damage to interior furnishings and fittings.
Bedding
and Sealing Fittings Subject to High Mechanical Stresses
Deck fittings such as chain plates, winches and guide
rollers have to absorb very high dynamic stresses. A high-performance
product, such as Sikaflex® -292, should be used in
conjunction with additional mechanical fixation for this
purpose.
Bedding
and Sealing Fittings Subject to Minimal Mechanical Stresses
Deck fittings such as ventilators, cover strips, etc.
need to be sealed against entry of water, but they are
not subject to high tensile stresses. Such fittings can
be effectively bedded and sealed with only Sikaflex®
-291.
.
Important
Note:
It is vital to ensure that the adhesive is not simply
squeezed out again when the fixing screws are pulled up
tight. To prevent this happening, shims approx. 1 mm thick
should be threaded over the screws on the underside of
the fitting to act as spacers. The screw holes themselves
should also be filled with sealant prior to fixing.
Spacing the fitting off the deck by 2-3 mm in this way
also facilitates its removal at a later date, when a cutting
wire or knife blade can be inserted between the base of
the fitting and the deck.
top
-BILD-B.jpg)
-BILD-A.jpg)