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ARCHITECT'S SPECIFICATION

CLEAR PENETRATING EPOXY SEALER™

PART 0. PREREQUISITE

Treatment of wood which performs a structural function shall be overseen by an architect or structural engineer, who shall ensure and certify that the actual wood remaining (before the commencement of restoration) is adequate to support its load. The Smith & Co. products shall only be specified for restoration of cosmetic properties of wood, and to help the wood resist further deterioration.

Clear Penetrating Epoxy Sealer has been found to help concrete resist Freeze-Thaw damage. Its use for that purpose is covered by a different specification. Further information on Freeze-Thaw resistance is here.

PART 1. GENERAL

Gross deterioration of the wood is present when portions of the wood element are missing, or some of the wood in the area being examined is of a soft, crumbly texture, easily removable by the bare fingers. Behind an area of gross deterioration will be found wood having high porosity and somewhat better mechanical properties, and behind that will be found wood of comparatively better mechanical properties and less porosity. Eventually, sound wood which is consistent in its porosity and mechanical properties is reached.
Moderate deterioration has a porosity in any particular dimension which is abnormally higher than that of wood recognized by an architect or structural engineer as being mechanically sound.
Since porosity abnormally different from sound wood is an observable characteristic of deteriorated wood, it follows that a product recognized as effective in penetrating the porosity of deteriorated wood may be used to recognize the presence of deteriorated wood when the extent of deterioration is not obvious, as well as to treat the deteriorated wood itself.

PART 2. PRODUCTS

Clear Penetrating Epoxy Sealer

PART 3. EXECUTION

Preparation: Elements which are or appear to be structural in nature or function may be inspected by an architect or structural engineer prior to commencement of any work by restoration personnel. Wood which is sufficiently deteriorated as to be not reliable as a substrate for the Smith & Co. restoration technology (in the professional judgement of personnel who have studied and understand the Smith & Co. literature), shall be removed by such personnel.
Before any further work is done, the structural wood element shall be inspected by an architect or structural engineer. By inspection, tests or measurements satisfactory to the architect or structural engineer, it shall be determined that the remaining portion of the wood element is sufficient to support its load, based on appropriate standards. Only after such validation may execution continue.
Application:
The act of restoration, using the Smith & Co. products and technology, may only be done or supervised by a person who has studied the Smith & Co. literature and demonstrated an ability to apply the Smith & Co. products correctly. Such a person must be continuously present on the job, from start to finish.
The work area must be protected from rain, snow or condensation from the beginning of any restoration work until final painting.
Apply Clear Penetrating Epoxy Sealer according to manufacturer’s instructions.

PART 4. MANUFACTURERS

Smith & Co. Restoration Products, inc., Richmond, CA
phone: 1-800-234-0330 fax: 1-510-232-9921
email: smi3th@smithandcompany.org
web: www.smithandcompany.org

SPECIFICATION

FILL-IT™ EPOXY FILLER

PART 1. GENERAL

The filler shall be a product proven effective in the restoration of deteriorated wood, or its improved versions.

PART 2. PRODUCTS

Fill-It Epoxy Filler

PART 3. EXECUTION

Preparation: The surface of any region to be filled shall be first treated with Clear Penetrating Epoxy Sealer in accordance with the specification for that product.

Application:
The act of restoration, using the Smith & Co. products and technology, may only be done or supervised by a person who has studied the Smith & Co. literature and demonstrated an ability to apply the Smith & co. products correctly. Such a person must be continuously present on the job, from start to finish.
The work area must be protected from rain, snow or condensation from the beginning of any restoration work until final painting.
Fill missing portions of wood with Fill-It Epoxy Filler. Sand as necessary to give a uniform surface.

PART 4. MANUFACTURERS

Smith & Co. Restoration Products, inc.
Richmond, CA
phone: 1-800-234-0330 fax: 1-510-232-9921
email: smi3th@smithandcompany.org
web: www.smithandcompany.org

SPECIFICATION

MultiWoodPrime

PART 1. GENERAL

In order to obtain a good bond between wood and any paint or adhesive, the fibers on the surface of the wood must be strongly bonded to each other and to the adhesive or coating. The surface of wood is microscopically rough, with many surface fibers loosely attached to the bulk of the wood underneath. Glues and the liquid portion of paints can soak into porous wood surfaces. This can produce a paint with most of the pigment on the surface and most of the resin soaked into the wood, and such a resin-starved coating will soon fail. Therefore a sealer is important in order to obtain good adhesion between wood and paints.
The MultiWoodPrime is formulated to be an effective sealer-primer in this context.
If paint is applied over a surface to which MultiWoodPrime was previously applied, but before the MultiWoodPrime is (roughly) half-cured, the second material proceeds to cure first, and the resin film of the MultiWoodPrime cures last, gluing down the second material.
MultiWoodPrime is formulated to be only partly-cured the next day, so that paint (preferably an oil-base primer) can be glued to the wood by the epoxy adhesive component of the MultiWoodPrime, which is why it is such an effective adhesion-promoting primer.
The resins used in Smith & Co. products are substantially derived from wood itself because these particular resins, when they cure, will have a toughness and flexibility that is comparable to wood.

PART 2. PRODUCTS

MultiWoodPrime

PART 3. EXECUTION

Preparation: The surface of restored wood where Fill-It Epoxy Filler has been applied shall be sanded to a uniform smoothness, with a grit no finer than 120.
Pressure-treated wood should be weathered for 6 months (to allow environmental degradation of water-repellent treatments) and then sanded.
Application:
The act of restoration, using the Smith & Co. products and technology, may only be done or supervised by a person who has studied the Smith & Co. literature and demonstrated an ability to apply the Smith & Co. products correctly. Such a person must be continuously present on the job, from start to finish.
It is imperative that the surface being treated be protected from rain, snow or condensation before, during and after this procedure, and until the final coat of paint has fully dried and cured.
Apply MultiWoodPrime.
The day after application of the MultiWoodPrime, an oil-base primer shall be applied, followed by an appropriate topcoat.
Two-component polyurethanes may be applied directly over the MultiWoodPrime; consult the manufacturer for special application procedures.

PART 4. MANUFACTURERS

Smith & Co. Restoration Products, inc.
Richmond, CA
phone: 1-800-234-0330 fax: 1-510-232-9921
email: smi3th@smithandcompany.org
web: www.smithandcompany.org

© copyright 1972 - 2009, The Brain Trust, a California irrevocable trust, reprinted with permission

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