Crane Composites CLEANROOM WALL SYSTEM - Manual (Page 5)

ADHESIVE RECOMMENDATIONS FOR VARIOUS SUBSTRATES
Refer to form #6846 for additional Crane Adhesive installation information.
Pre-Installation Planning
• Pre-fi t each panel before fastening and/or adhering in place.
•
All cutting and drilling should be done prior to the application of adhesive.
• Preplan for cove or base molding. FRP panels should be installed so that the bas e molding will not restrict normal panel movement
during expansion and contraction. Cut panels 1/4” short of where the base molding will extend; poured acrylic fl oor with built-in
base cove should be in place prior to installation.
• When using rivets, pre-drill holes in the panels using a drill bit that is 1/4” larger than the rivet. Plan ahead so that fasteners will not
interfere with moldings or other wall fi xtures.
• When using mechanical fasteners through FRP to attach wall angles or other fi xtures, pre-drill holes using a drill bit that is 1/4”
larger than the mechanical fastener. Without oversizing the holes, the FRP will likely have bulges and/or buckles when panel
movement occurs during expansion and contraction.
Basic FRP Installation Steps
1. Trim panel to fi t. Oversize pilot holes if drop-in ceiling wall angle is attached to and through FRP
(please allow for proper expansion and contraction)
2. Radius corners of any cut out fi xture openings.
3. Apply adhesive to 100% of the backside of panel using a cross-hatch pattern using a trowel recommended by the adhesive
manufacturer.
4. Place panel on wall, leaving appropriate room at panel joints and corners for expansion and contraction.
5. Using a laminate roller, remove air pockets by rolling down and out toward the panel edge without a molding.
6. Fit appropriate moldings to panels edge leaving a minimum of 1/8” for expansion between panel and molding stem.
7. Install next panel.
The nature of FRP panels is to expand and contract. Without leaving required room for expansion and contraction, FRP
panels can develop buckles and/or bulges because panel movement will occur.
FRP to:
Advanced
Polymer
Fast Grab
Standard unpainted drywall YES YES
Standard unpainted plywood YES YES
Treated plywood YES NO
Fire rated plywood YES NO
Cement board YES NO
Fiberglass faced, mold resistant
and fi recode core drywall
YES NO
DensGlass YES NO
FRP YES NO
Traditional Greenboard YES NO
Ceramic tile YES NO
FRP to:
Advanced
Polymer
Fast Grab
Stainless steel YES NO
Metal YES NO
Aluminum YES NO
Galvanized metal YES NO
Cement block
(above grade or inside wall)
YES NO
Cement block
(below grade or outside wall)
YES NO
Painted walls
(if paint is well anchored)
YES NO
Polystyrene foam YES NO
Polyurethane foam YES NO
Foil-faced insulation YES NO
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