Application Instructions For Products With Contact Adhesive
TOOLS & SUPPLIES
A Flexwood® scraper, or the equivalent should be available. Do not use
J-Rollers or hammer blocks. Flexwood scrapers are available from your
Most contact adhesives work well with Flexwood® Products.
Both solvent based and water based adhesives are acceptable.
We recommend using a roller grade adhesive and following the
manufacturers instructions precisely.
Have on hand a supply of bare, 1/8" hardboard separator strips. The
separators need to be long enough, and enough of them to completely
cover the area coated with contact adhesive. Two separators, half the
width of the substrated may be used, but using multiple separators
about 6" wide will make it easier to slip and remove them as you make
contact across the panel.
Contact adhesive adheres on contact. Do not attempt to install
Flexwood® without separator strips.
VENEER & SUBSTRATE PREPARATION
• Acclimate substrates and Flexwood® products for 48 hours.
• Determine how many coats of adhesive the substrate will require.
• Porous substrates will require two coats
• Lay out Flexwood® products and allow them to relax. Boards or panels may
be used to flatten sheets showing any curl.
Coat both substrate and back of Flexwood® with a smooth layer of contact
adhesive. We recommend rolling. If adhesive is sprayed, it must coat 100%
of both surfaces. Make sure you honor manufacturers Instructions concerning open time.
Adhesive coverage is the key element in successful application of Flexwood® products.
Some fullness or curl is normal in Flexwood® products. Fully acclimating sheets under
weight will reduce this situation. Because tight grain woods such as Maple are most
susceptible to curl caused by moisture, they will require close attention. When
covering large panels, use the centerline method outlined below.
Apply Flexwood® to substrate Do not attempt to start on one edge of a wide
panel. Use the centerline method of applying the sheet to the substrate.
• Lay out separator strips on substrate.
• Make initial contact down the centerline of the sheet and substrate.
• Grasp the East half of the sheet and pull it taut to remove any fullness.
• Lower the tightly stretched sheet and move the separator strip away from the centerline
• Using the Flexwood® tool, scrape the contacted area hard to bond the two adhesive surfaces.
• Repeat process for the West half.
• Using your body weight and both hands to exert maximum pressure through
Flexwood® into the adhesive, scrape the entire panel again with the Flexwood® scraper.
The Flexwood® scraper is designed for joining surfaces with contact adhesive. The
edges are square cut. Do not relieve these edges by rounding them. The square edges
insure maximum pressure for the best possible bond.
INSPECTION & FINISHING
Inspect the panel by shining a light across the grain. Insure that any problems
are corrected prior to proceeding.
Types of bond problems
Ridges result from inadequate adhesive coverage or adhesive manufacturers
drying time is not being honored. Adhesive that is not dry allows the veneer
to expand across the grain to form ridges in the grain direction, and generally
all across the face. Allow adhesive to fully dry. If adhesive has legs when
sheet is pulled off substrate, adhesive was not fully cured before bonding.
Bubbles occur as a result of lack of adhesive or insufficient pressure
applied during application. Using J-rollers will generally result in bubbles.
Use Flexwood® scraper to make bond. Overlap strokes. Finishing materials or
high moisture conditions will cause veneer to expand. Areas of marginal bond
will pop up into blisters. Slit the blister and check for adhesive coverage.
If iron is used to repair bubbles, place a piece of Kraft paper between the
iron and veneer to keep from scorching surface. Keep iron moving.
Sanding the veneer on Flexwood® is very thin. Excessive sanding may result
in sand through. Do not use any grit coarser than 150. Use one thickness of
sandpaper with fingertips.
Most finishing materials are suitable for use on Flexwood® products. It is
however vary important that all finishing materials be tested for appropriate
results. Water based finishes will cause veneer to try to expand. It is vital
that the bond is well executed.
Fillers such as Star, Mohawk and Famowood may be used to fill small voids
in the surface of Flexwood® products. These fillers work best if thinned
with lacquer thinner to a syrupy consistency and sanded while still wet.
Bubbles may be repairable. Slit in grain direction, and heat with a warm
iron to reactivate adhesive. If adhesive coverage is scant the bubble will not adhere.
IT IS THE SOLE RESPONSIBILITY OF THE INSTALLER TO TEST AND DECIDE IF THE
SUBSTRATE IS SUITABLE FOR THE APPLICATION.
• Apply adhesive in a smooth solid coat.
• Apply full wet coat over 100% of both surfaces.
• Apply two coats on any porous substrates.
• Honor all working times set by adhesive manufacturer.
• Check with your adhesive manufacturer before using PVA adhesive
with Flexwood® products.
• Sand the back of Flexwood® to enhance the bond of PVA adhesives.
Do not attempt to apply Flexwood® products to the following substrates:
• Sheet rock, or drywall
• Any exterior surface
• Plastic laminate or melamine board
• Spiral wound cardboard tubes
Apply two coats of contact adhesive to porous substrates.
• Always use the centerline technique to start application
• Acclimate the Flexwood® products and the substrate before application
You must apply all possible pressure with a narrow rigid scraper.
• Do not use J-Rollers
• Do not use hammer blocks
• Scrape twice
Wood expands with moisture! Weak bonds will allow Flexwood® to expand
in the presence of moisture. This will invariably result in ridges or blisters.
Homecraft Veneer presents these application instructions as suggestions based on our
experience with this product. However, due to varying procedures and conditions, this
information is given without obligation or warranty. We recommend that thorough testing
of this product, adhesives and finishing materials be completed prior to final application.
Application Instructions For Products With Pressure Sensitive Adhesive
Remove curl from veneer sheets. Lat sheets flat and cover with plywood
while sheets acclimatize to the ambient conditions of the job site. Ideal
conditions are 70º – 80º F at 35% - 50% relative humidity; prior, during and
after installation. If you pre-finish sheets as 2’ x 8’ , they should be dried,
re-rolled just as received, and placed back in the original shipping carton.
This will help pre-finished sheets stay flat until used on the job.
Unsupported, un-mounted pre-finished sheets are subject to finish cracking
under adverse conditions of humidity and temperature.
Test All Surfaces
Pressure sensitive adhesive sticks best to lacquered, enameled,
or varnished top-coated surfaces which are not peeling, cracking, or
flaking and are free of dirt, dust, grime wax or grease. This
product normally comes 24” wide. Do not attempt to join sheets to
cover areas wider than 24”.
Never attempt to use this product in direct contact with bare wood,
sanding sealers, high pressure laminates, melamine surfaces, or
other plastic surfaces.
It is the sole responsibility of the installer to test each surface to
determine if this product is suitable for each application.
Use only Denatured Ethyl Alcohol (SOLOX) to remove grease, grime,
dust and waxes. Never use mineral spirits, naptha, or gasoline.
These leave an oily film on the finished surface.
Then uniformly scuff sand the finished surface with 280-320 No-Fill
sandpaper. (If bare wood is exposed use enamel, lacquer or varnish
topcoats to coat the exposed bare wood) Then tack-rag wipe dust free.
Re-wipe with denatured ethyl alcohol and apply the sheet.
Trim to Size
Trim veneer sheet ½” oversize all around to allow trimming. Loose fit
the sheet with the release liner in place to ensure correct fit.
Peel the release liner
Slit the release liner along the centerline of sheet and peel back 1”
on each side to reveal 2” wide strip of adhesive. Crease the liner flat.
• Do not use J roller. Sheets must be scrapped down tightly with a
• Do not allow adhesive to pick up trash or dust.
• Keep fingers off the adhesive.
• Do not press tightly to surface until certain that the sheet is in the correct position.
• Installed veneers must be promptly finished to guard against high humidity conditions.
Align the sheet.
Lightly touch down
Lightly touch down.
Pull the release liner
Pull the release liner from the back of the sheet and scrape the veneer
to the surface as you pull the liner. Do not use fingers to smooth the
veneer. This will result in bubbles. Use the scraper tool. “J” rollers
do not result in sufficient nip pressure. Insufficient pressure during
application is the major cause of delaminating and checking after
application. Pressure sensitive adhesives are very sensitive to lack
of pressure. Strive for all possible scraper pressure during application.
The scraper tool must be used
The scraper tool must be used to apply pressure to the sheets. It is
very important to eliminate all bubbles and trapped air which will
result in a failed application. Go Slowly! It is necessary to exert
maximum pressure on the surface with the scraper tool. Use of the
release liner or Kraft paper between the scraper tool and the veneer
surface will eliminate any burnishing of the veneer.
Re-facing kitchen cabinets
These steps explain how to cover flat panels. If you are installing
this product on kitchen cabinet end panels do not jam fit the sheets
tightly between the back of the face frame, and the wall. All wood
tends to expand in the presence of high humidity. For that reason,
never jam Flexwood sheets between limits. Allow at least 1/16” on each
side for expansion. Failure to allow for expansion can result in failed
Pressure sensitive adhesive do not achieve ultimate adhesion until 72
hours after being applied to appropriate surfaces. Bear in mind that wood
veneers are vulnerable to high humidity. Advise the homeowner of this.
Remember every installation requires professional diligence and execution.
Birds Eye Maple, Cherry, Maple, and Birch species are unforgiving of any
inattention to detail.
In every case we urge and recommend that purchasers before using any product
in full scale production make their own tests to determine to their own
satisfaction whether the product is of acceptable quality and is suitable
for their particular purposes under their own operating conditions. The
products herein are sold without any warranty as to their merchantability
or fitness for a particular purpose or any other warranty, express or implied.
No representative of ours has any authority to waive or change the foregoing
provisions but, subject to such provisions, our engineers are available to
assist purchasers in adapting our products to their needs and to the
circumstances prevailing in their business.