Detailed Product Description:

 

Smith’s “Multi-Wood Prime” (also known as “Clear Penetrating Epoxy Sealer”

 

or CPES) consists of a tough, flexible resin system in a solvent blend which

 

dissolves the sap, oil and moisture found in wood. 

 

 

The resin system is derived from natural wood resins and develops a chemical

 

adhesive that bonds the wood fibers to themselves.  The resins from each form

 

a bond which prevents coating adhesion failure.  The wood is thus strengthened

 

while allowing normal expansion and contraction with changes in temperature

 

and humidity.

 

 

Paint or varnish will last longer because the paint has a strongly attached, chemically

 

compatible surface to which it becomes bonded. 

 

 

It performs the multiple functions of promoting topcoat adhesion, neutralizing wood

 

acidity, sealing surface porosity, impregnating sub-surface porosity, blocking tannin

 

bleed, resisting coating failure, and toughens a soft surface so it can be lightly

 

sanded.

 

 

 

When repairing wood that has mild dry rot, the CPES will migrate along the abnormal

 

porosity which dry rot fungus creates within the wood, as long as it continues to be

 

fed in.  Impregnation of wood with CPES changes the cellulose of wood into an

 

epoxy-impregnated cellulose composite which resists further attack by fungi and

 

bacteria while reinforcing the wood, accomplishing restoration.  The long working

 

time (pot life) of this product provides a long penetrating and moisture-dissolving period.

 

 

The Technology:

 

Other primer formulations have not kept up with the changes effected by governmental

 

legislation which forced topcoat manufacturers to remove key ingredients because of

 

environmental issues.  Additionally no other primer was ever able to fully impregnate

 

the porosity of old, weathered wood and new, sound wood.  Also note that most of the

 

lumber being sold today is not of the same quality as it was when the original primers

 

were formulated.

 

 

MultiWoodPrime is designed to impregnate wood.  It has an extremely low viscosity—

 

virtually like water.  All of the product goes into the wood, gluing the fibers together. 

 

Total immersion of the wood is optimal.  In some cases immersion is not viable, such

 

as when the individual components of the millwork have already been assembled. 

 

 

Application Notes:

 

Application may be by brush, roller or immersion.  Spraying is not recommended as

 

a portion of the solvent component will evaporate in transit.  When applying by

 

roller on a vertical surface, hold the roller only horizontally and slowly roll only

 

upwards.  Keep rain or dew away from areas being treated with CPES until solvents

 

have evaporated out of the wood.  This will take at least a day and may take a week

 

or more, depending on the extent of deterioration, how deeply the CPES soaked in

 

and the daily temperature swings.

 

 

When treating rot inside sound wood, drill a hole that intersects the rot, glue a funnel

 

in the hole, and use the Cold Weather Formula to impregnate the region.  Allow sufficient

 

time for solvents to diffuse and evaporate out of the wood before applying fillers or glues.

 

Removing paint from all sides of wood to be treated speeds solvent evaporation, as does

 

moving air.

 

 

Mix Ratio:

 

1 part resin (Part A) to 1 part accelerator (Part B) by volume

 

 

Pot Life:

 

4 hours at 86˚F

 

8 hours at 68˚F

 

16 hours at 50ºF

 

 

Full Cure:

 

2 days at 86˚F

 

4 days at 68˚F

 

8 days at 50˚F

 

 

Precautions:

 

Combustible mixture.  Keep from flame and ignition sources.

 

Use with adequate ventilation.

 

 

Packaging:

 

Half-Gallon kit comes packed in pair of 1-quart cans