There is no primer available anywhere, not through speciality suppliers or retail outlets or any other, that functions as an adhesion promoting primer, a porosity sealing primer, a tannin-blocking primer, an acidity neutralizing primer and a sanding-primer, (as well as resisting long-term coating failure) all-in-one thus the new brand name MultiwoodPrime.

Why aren't other primers effective?

The old, but still currently marketed primer formulations have not kept up with the changes effected by governmental legislation which forced topcoat manufacturers to remove key ingredients because of enviromental issues. No primer, old or new was ever able to fully impregnate the porosity of old, weathered wood and new sound wood. The quality of lumber being sold today is not the same as it was when the orginal primers were formulated.

Historically, a simple lead carbonated oil-base primer "White Lead" worked well on slow-growing dense old growth wood because the lead carbonate also functioned as a mild, effective fungicide. We all know government regulators removed the lead from all paint, but that wasn't all that changed. The lumber industry developed fast-growing trees and their wood was much more porous than the slow growing types. Lastly, latex paint replaced oil-based paint, with latex paint manufacturers claiming their latex product could be used directly on wood as a primer, as well as a topcoat. After these three changes took place, consumers found their wood rotted more easily, paint did not prevent rot, and when rot developed under the layer of paint, the paint separated from the wood.

MultiWoodPrime, as opposed to other primers on the market, provides the ingredients needed and/or missing in common primers which fail to keep paint stuck to the wood after one or a few years, In this way MultWoodPrime compensates for today's highly porous wood.

Above we see two pieces of sound fir that have been saturated with MultiWoodPrime. The product is normally clear however we have died it blue to better illustrate how deeply MultiWoodPrime penetrates in new solid wood.

MultiWoodPrime Treated

These plywood speciments were completey saturared with CPES. 48 hours later the bottom edge was placed in a shallow tray containing CPES with blue dye added, and the liquid wicked up into whatever porosity there might now be. After this treatment and cure, a few sections were cut and sanded.

The dyed resin shows regions of abnormal porosity remaining after the impregnation treatment. You will note the tremendous reduction of abnormal porosity compared to the sample on the right.


Without Treatment

New plywood has an abnormal porosity which allows the intrusion of fungal spores, carried by the environment's moisture. This is why plywood rots more readily than solid wood siding. This material was treated with CPES dyed blue so that regions of abnormal porosity would be visible after impregnation. The bottom edge was placed in a shallow tray and the liquid wicked up into the wood. After impregnation and cure, a few sections were cut and sanded.

The dyed resin shows regions of abnormal porosity. These regions are now impregnated with a high rot resistant and water repellant resin. This treatment improves the ability of the wood to resis further deterioration. When finally painted, MultiWoodPrime glues the paint to the wood, so paint sticks better and lasts longer.