Document dDYN7Y86vGXwMGd3NMJN9ke59
THIS IS A Tloij*.Tj cT.". ^ m,T Of aS -.UIH.^ NuT iET OFrICIALLY ADOPTED.
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MINIMUM BEQUIFi7.13iTS FOB TWO-COAT PAINT SYSTEMS
It is the intent of these requirements to provide a method
whereby manufacturers of paint systems designed to be applied
in two coats may, by furnishing a statement to each of our
local offices in the districts in v;hich their paint is sold,
place themselves on record as recommending that their tvo-coat
paint systems, `..hen applied in accordance with their directions,
will provide a covering equivalent to a good three-coat paint
system. Such a statement, vhen received by our local offices,
will ue considered as the equivalent of a certification to a
commercial standard and warrant those offices in accepting the
paint for application in two coats.
It should be remembered that where the application is of
ouch nature as not to give a job equivalent to three coats,
the offices reserve the- right to insist upon additional coats.
In many cases where two-coat paint systems have apparently
bt ory-'rejected, the difficulty has often been caused by improper
application which has necessitated a third coat. Contrary to
the facts, this has many times been interpreted as discrimina
tion against two-coat, paint systems.
?wo-coat systems shall be oreparc-d paints in ready-mixed
form, especially developed for two-coat wor* or, in lieu
thereof, two coats of white lead-in-oil mixed according to the
oimuias given below
MCA 0 0291c
N 3916
(2)
/ I. Prepared Two-Coat Paint;
1. `The prepared pain to shall consist of a separate primer and a separate finish coat, which shall be used together as a tv;o-coat system, or they may consist of a single product.
2. Each container of such paints shall bear a label v.hich shall show the following;
(a) That the paint is a ready-mixed point especially designed for tro-coat work.
(b) Specific directions for the quantity and type of thinner to be used for the priming and for fin ishing coats.
(c) The complete analysis of the pigment ana vehicle portions by percentages in accordance with the
requirements outlined in "Nomenclature for Formula Labeling, " issued by the National Paint, Varnish ana Lacquer Association under date of October, 1938.
(a) At the foot of the directions for thinning, and
as a guide to the painter, a statement should be
made of the area, in number of square feet per gallon, which the primer and finish coat should be spread when thinned according to the directions
printed on the label. The manufacturer can base his conclusions on this by applying the paint in
two-coat work to red cedar (for example) at a temperature of 70 F. (Such spreading rate, of
/ course, would vary to a greater or less extent
on other woods, according to the porosity thereof.)
3. The manufacturer shall file with each insuring office in whose disttrict his paint is being marketed, a statement which shall state that--
(a) When the prime coat and finish coat are each
applied in accordance with aircctions at the rate of one gallon of paint over an area as suggested on the label, a total film thickness
of not less than .004 inch will result.
(b) The paint when thinned and applied in accordance
with the manufacturer's directions, will hide
completely in two coats with uurability equiva
lent to a good three-coat paint job.
q Q2917
(3)
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4.. The application for acceptance shall contain the formulas of primer and finish coats, which shall be identical with those printed on the labels.
- Also, one copy of the labels shall accompany the application. MOTE:--The local insuring offices shall be informed immediately of any changes in the formula or design of the label, end a new statement applying to the new paint shall be fumisht-u to each insuring office.
II. Leap-in-Oil: Lesa-in-oil tvo-coat paint systems will be acceptable mixea on the job when mixed according to the following formulas, provided they conform to requirements (a) anu (b) under paragraph 3. First Coat--100 lbs. white lead soft paste, 1 1/2 gal. raw linseed oil, 3/4 gal. exterior spar varnish, 1/2 gal. turpentine, 1 pint liquid' arier, 1/4 pint raw umber in* oil, total 6 1/8 gel. paint. Finish Coat--I00 lbs. white lead soft paste, 2 2/3 gal.' raw linseed oil, 3 pints turpentine, 1 pint liquid drit-r, total 6 1/& gal. paint.
In all cases where two-coat paint systems as well as con ventional three-coat paint jobs are used, the Federal Housing Administration reserves the right to require additional coats of padnt until satisfactory hiding is obtained.
NC A 0 0291S