Technical Specifications
FAQs
16. How do you fasten trim & mouldings?
There are several manufacturers that produce fasteners specifically intended for use with cellular
PVC. (See list below). You can also use fasteners designed for wood trim. They should have thin
shanks, blunt points and full round heads. Fasteners should penetrate 1½” into substrate.
Fasteners should be positioned no less than ¾” or more than 2” from end of boards. Fasteners
must be weather resistant, such as stainless steel. For interior trim, such as casing, base, quarter
round and crown, use 16 gauge finish nails, 6d or 8d finish nails. Pneumatic guns can be used -
rubber bumpers on the nail gun tooling will protect the moulding. Air pressure should be adjusted
based upon gun, temperature, substrate (80-100 psi is typical). Always use the least pressure
necessary to drive the nail into the product.).Trim should be fastened to a flat solid surface. In cold
weather below 40°F, predrilling may be necessary. Do not use brads or wire nails. Staples can only
be used to fasten beaded planking.
Recommended Screws:
• Fasten Master Cortex® Hidden Fastening System (screw and PVC plug system)
• Starborn Pro Plug® System (screw and PVC plug system)
• Simpson Strong-Tie® Trim-Head Stainless Steel Screw
•
GRK Fasteners FIN/Trim Finishing Trim Head Screws (ClimatekCoated® or Phoenix Stainless Steel)
• Kreg Blue-Kote ™ Pocket-Hole Screws (for assembling trim with pocket-holes)
• #8 gauge TrimTop 305 SS with sharp type 17 piercing point by Fasten Master
• 305 SS Headcote #7 or #8 trim screws with auger points
For Concrete/Masonry/Brick: – Apply masonry adhesive sealant (always follow manufacturer’s
instructions) to the surface of concrete first. Lay the trim board/sheet and secure with Tapcon
masonry fasteners.
17. What should I use to fill screw or nail holes and or cracks?
a. Sashco Big Stretch High Performance Elastic sealant
b. Dap® All Purpose Painters Putty®
c. Sherwin Williams Shrink Free Spackling®
d. Extreme Adhesives Bond and Fill®
18. What adhesives do you recommend?
Mechanical fasteners are always required. User needs to follow manufacturer’s instructions.
Adhesives or caulkings are not covered by our warranty. Listed below are manufacturers that have
formulated adhesives/caulkings to work with:
PVC to PVC – ZeVo 1 Part Cellular PVC Adhesive® for use with Royal Building Products
• FastCap 2P-10 Adhesive & Activator • Extreme Adhesives PVC Trim Welder® • OSI PVC Trim
Bond® • Liquid Nails Fuze*It® • Liquid Nails® 501 Siding & Trim Construction Adhesive • NPC
Solar Seal® 900 • Weld-On® 705 by IPS • Christy’s Red Hot White Vinyl Adhesive® • Quality
Transparent PVC Cement • DAP RapidFuse • MasterSeal® NP1 • Trim & Mouldings FAQ
PVC to Wood – NPC Solar Seal® 900 • Liquid Nails Fuze*It® • Liquid Nails® LN950
Construction Adhesive • MasterSeal® NP1
PVC to Masonry – NPC Solar Seal® 900 • Liquid Nails® LN950 Construction Adhesive • Liquid
Nails Fuze*It® • For PVC to Steel • NPC Solar Seal® 900 • Liquid Nails Fuze*It® • Liquid Nails®
LN950 Construction Adhesive
PAINTING & COATING PVC
19. Does cellular PVC trim and/or cellular PVC require painting?
No. Cellular PVC trim does not require painting but, like any cellular PVC product, it will weather
over time and painting will enhance these beautiful products to maintain color consistency for
many years. Our cellular trim products are ready for painting and require very little preparation.
Painting with a good quality, vinyl safe 100% Acrylic Latex paint will further protect products to
maintain color consistency for many years. There are several paint manufacturers that will
warranty their coating products on cellular PVC trim for 20 years or more.
Our Warranty does not cover painted finishes or coating applied to the product by the original
purchaser or any third party.
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