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ARCHITECT'S
SPECIFICATION
SMITH'S CLEAR PENETRATING EPOXY SEALER™ AND
SMITH'S 275 V.O.C. FORMULA™ 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.
Smith's 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
Smith's Clear Penetrating Epoxy Sealer
Smith's 275 V.O.C. Formula 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 Smith's Clear Penetrating Epoxy Sealer or Smith's 275 V.O.C. Formula 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: support@smithandcompany.org
web: www.smithandcompany.org
SPECIFICATION
SMITH'S 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
Smith's Fill-It Epoxy Filler
PART 3. EXECUTION
Preparation: The surface of any region to be filled shall be first treated
with Smith's 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 Smith's 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: support@smithandcompany.org
web: www.smithandcompany.org
SPECIFICATION
MULTIWOODPRIME™ AND
MULTIWOODPRIME 275 V.O.C. FORMULA™
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
MULTIWOODPRIME 275 V.O.C. FORMULA™
PART 3. EXECUTION
Preparation: The surface of restored wood where Smith's 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: support@smithandcompany.org
web: www.smithandcompany.org
© copyright 1972 - 2017, Steve Smith, reprinted with permission
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