• Solely addressing the condition of the paint film rarely solves the real problem. The underlying condition is the wood itself!

• Leaving the decayed and damaged wood behind greatly compromises the bonding strength of the epoxy repair material to a sound surface.

• Therefore, it is imperative that all contaminates be removed to a clean, sound subsurface.

• Impregnating decayed wood fibers with epoxy provides only a short term solution


Remove Paint

Remove paint from surrounding area by
sanding or scraping until bare wood is
exposed. Paint acts as a camouflage,
hiding decay and substrate imperfections.
Bonding epoxy to paint will compromise
the bond of the epoxy to sound wood
fibers. Lead paint may be present.
Take proper measures to protect workers
and surrounding environment.






Dilate Open Joints to 1/4"

Dilate any checks or cracks and open
joints to a width of 1/4” and depth of 1/2”
using a cutting tool.









Brush on Prime-A-Trate

Since the Flex-Tec HV is a thick gel-like
material, its ability to penetrate wood fibers
is limited. Enhance the bonding strength
of the Flex-Tec HV with ART 901
Prime-A-Trate bonding agent. The purpose
of the Prime-A-Trate bonding Agent is to
penetrate deeply below the surface
and allow the Flex-Tec HV to “grab on”
and provide more than a surface bond.

Mix two parts of A Component with one
part of B Component. Brush a liberal film of
Prime-A-Trate bonding agent onto the bare
and sanded wood using a disposable brush.
View How-to Video on surface preparation
to see an example of Prime‑A‑Trate
. Avoid working in direct sunlight.
Allow at least ten minutes for penetration with
a max work time of thirty minutes. Remove
excess with a paper towel before application
of the Flex-Tec HV.




Apply a thin layer of Flex-Tec HV


Apply a thin layer of Flex-Tec HV to the area
to be repaired to ensure optimal adhesion to
the wood. Immediately fill the repair completely
to a smooth and even finish.

Helpful Hints:
To achieve a right angle such as a corner
surface, Plexiglas strips can be used to
create a form.
View our video on tooling Flex-Tec HV

Molding profiles can be achieved by first
using a profile gauge to create a template.
To do this, cut the molding profile out of a
plastic putty knife. This will allow you to
replicate the missing profile by shaping the
Flex-Tec with the putty knife.


Flex-Tec HV will not
shrink or sag

Since Flex-Tec HV is a gel-like material it
will not slump when used on an overhead
repair application.








Remove all sanding dust

If a second coat of Flex-Tec HV is required,

the next step is to mix and apply the second


If you do not need to apply a second coat,

you must now prime the repair area with a

latex based primer. You may complete your

repair with a finish coating of your choice

(latex or oil base paint).



Uncured epoxy material can be removed

using Handi-Towels available from ART,

household vinegar or industrial hand cleaner

such as Go-jo.







Remove Decayed Wood

Remove all decayed wood. You must expose
the sound, bright, unaffected wood fibers in
order for a strong bond to form. Use a chisel,
router, die grinder, or flexible shaft router. Gray
wood or brown-red spots should be removed.
No soft or brittle wood fibers should remain.
Putties and past attempts at repair should be removed. Remove all dust, dirt, and loose

wood fibers.






Check Moisture Content

Check moisture content of remaining sound
wood using an electronic moisture tester. High moisture content will inhibit proper penetration
of the bonding agent (epoxy primer) to loose
wood fibers.







Dispense & thoroughly Mix

Dispense desired amount of Flex-Tec HV
onto a flat mixing surface and mix both
parts thoroughly with a putty knife.

Product Feature:

Precision dispensing system ensures
no guess-work.


Thoroughly mix both parts A and B in
order for the epoxy to fully cure.














Sand the repair

After the epoxy has cured, (12-24 Hours)

sand the repair until it is even and smooth.










































One Final Word

Dry and in the dark
The durability of an epoxy repair is only as good as the surface prep and continued protection from moisture and sunlight. This means applying and maintaining a quality paint coating. Keep the wood dry and in the dark

and it will last forever!