Technical Specifications
1
Form: 1018990
Rev.: 111411
ALKYD
TECHNICAL DATA
RO-11
7400 SYSTEM
450 VOC ALKYD ENAMEL
PRIMERS
DESCRIPTION AND USES
769
®
Damp Proof Red Primer
is a special modified a
l
k
y
d
primer designed specifically to protect rusted steel
a
g
a
i
n
s
t
further rust and corrosion. Use on rusted steel surfaces
w
h
e
r
e
only minimal surface preparation (scraping and wire b
r
u
s
h
i
ng
)
is
p
r
a
c
t
i
c
a
l
.
Heavy duty rust inhibitive primers
are special high so
li
d
s
alkyd primers with rust-inhibitive pigmentation for
h
eavy
-
du
t
y
corrosion protection of steel surfaces subjected to
ex
t
r
e
m
e
rust-producing
environments, such as coastal areas or
h
eavy
industrial atmospheres. Use on clean, heavily rusted,
li
gh
t
l
y
rusted, abrasive blasted or previously painted
s
u
r
f
a
c
es
.
Zinc chromate primers
are general purpose,
r
u
s
t
-
i
nh
i
b
i
t
i
ve
,
modified alkyd primers designed for lightly rusted, b
a
r
e
,
abrasive blasted or previously painted surfaces. May be
u
se
d
as intermediate coats for maximum corrosion p
r
o
t
e
c
t
i
o
n
.
These primers are not for use on galvanized s
t
ee
l
.
PRODUCT
APPLICA
TION
SURFACE
P
R
E
P
A
R
AT
I
O
N
ALL SURFACES:
Remove all dirt, grease, oil, salt and
c
h
e
m
i
c
a
l
contaminants by washing the surface with Pure
S
t
r
e
ng
t
h
®
Cleaner/Degreaser,
item #3599402, commercial detergent or other
suitable cleaner. Rinse thoroughly with fresh water and allow
t
o
fully dry. All surfaces must be dry at time of
a
pp
li
c
a
t
i
o
n
.
STEEL:
Hand tool
(
SS
PC
-
S
P
-
2
)
or power tool
(
SS
PC
-
S
P
-
3
)
c
l
ea
n
to remove all loose rust, mill scale, and deteriorated p
r
ev
i
o
u
s
coatings. Abrasive blasting to a minimum Commercial
G
r
a
d
e
(
SS
PC
-
S
P
-
6,
N
A
C
E
3) with a 1-2 mils (25-50μ) surface profile
i
s
recommended for optimal performance. Abrasive blast
c
l
ea
n
e
d
steel requires two coats of primer. 769 is intended for
so
und
rusted steel only.
Do not use
769 on clean or abrasive clean s
t
ee
l
.
PREVIOUSLY COATED:
Previously coated surfaces must be so
und
and in good condition. Smooth, hard, or glossy finishes should be
scarified by sanding to create a surface profile. The
R
u
s
t
-
O
l
e
u
m
®
Industrial Enamel Primers are compatible with most coatings,
but
a test patch is suggested. WARNING! If you scrape, sand or
r
e
m
ove
old paint from any surface, you may release lead paint du
s
t
.
LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE
S
E
R
I
OU
S
ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN
C
HI
L
D
R
E
N
.
PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE.
Wear a
N
I
O
SH
-
a
pp
r
ove
d
respirator to contol lead exposure. Carefully
c
l
ea
n
up with a wet mop or
HEPA
vacuum. For additional
i
n
f
o
r
m
a
t
i
o
n
contact the
U
.
S
.
E
P
A
/
Lea
d
Information Hotline at
1
-
800
-
424
-
L
E
A
D
or log on to
www
.
e
p
a
.
g
ov
/
l
ea
d
.
A
PP
L
I
C
AT
I
O
N
Apply only when the air and surface temperatures are b
e
t
w
ee
n
32-100°F
(
0
-
38
°
C)
and the surface temperature is at least
5
°
F
(
3
°
C)
above the dew point. Abrasive blast clean steel requires
t
w
o
coats of p
r
i
m
e
r
.