Asked Questions About KOMA® Trimboards
What makes KOMA Trimboards the ideal replacement for wood or other
KOMA Trimboards is an extruded PVC product and will not be affected
by moisture. This means the boards will not warp, cup, twist, or
rot. KOMA Trimboards are also impervious to salt and insects and
will never need to be replaced.
do I fasten KOMA Trimboards?
You can use nails, screws, and construction adhesives to fasten
KOMA Trimboards to wood, masonry and other materials and surfaces.
When you want KOMA Trimboards to adhere to each other, use KOMA
Bond and Fill for an excellent bond and a perfect color match. You
can also use PVC cement or a high quality polyurethane adhesive.
Do not use a silicone based product.
fasteners can be used with KOMA Trimboards?
Any rust-proof woodworking fastener will work with KOMA products.
We recommend stainless steel. Hot-dipped galvanized fasteners can
also be used. KOMA products do not require pre-drilling unless large
fasteners are used or the product is installed in low temperatures.
KOMA Trimboards work well with finish nail guns using rust-proof
nails. Avoid using fine-threaded wood screws or ring-shank nails.
Fill fastener holes with KOMA Bond and Fill.
cleaners are recommended for use with KOMA Trimboards?
Household cleaners such as Clorox® Cleanup or Soft Scrub should
remove most common soils and stains. For more stubborn situations,
Clorox® Outdoors is recommended. Use with a stainless steel
brush and scrub with the grain. Do not use cleaners containing acid
or solvents like MEK, acetone, or toluol. Ground in or abraded stains
can be removed with 100 grit sandpaper. Lightly sand with the grain
until stain is removed.
KOMA Trimboards take paint?
KOMA Trimboards are UV-resistant and do not require paint for protection.
They may be painted to achieve a custom color and the special proprietary
surface allows paint to bond better than with all other PVC products.
Use interior or exterior 100% acrylic latex paint. Avoid painting
KOMA Trimboards surfaces dark colors in areas of direct sunlight.
(Don’t exceed #65 on the light reflective scale).
can I find guidelines for installing KOMA Trimboards?
You may download KOMA Trimboards Installation
Guidelines from this site. They are found in the Literature
I protected by a KOMA Trimboards warranty?
KOMA Trimboards carry a strong product warranty
for your protection. It can be found in the Literature section of
do I go when I have questions or concerns?
KOMA Trimboards are backed by Kömmerling, a trusted leader
in PVC construction materials. Our experienced staff is available
to answer questions and help you realize the greatest value from