Subkote #1 is a lightweight underlayment that can be applied in the thickness necessary to smooth or contour the deck preceding the installation of deck covering finishes. Subkote #1 is a synthetic rubber latex mastic which when trowel-applied to properly cleaned deck surfaces will adhere without the use of mechanical fasteners. It is resilient, flexible and sound-deadening, yet provides good indentation resistance. It is fire retardant, providing good thermal insulation and is moisture resistant. Subkote #1 is Coast Guard approved as Magnabond #1, a composite application with an approved magnesite (magnesium oxychloride cement).
(See CG COMDTINST M16714.3 Equipment List.)
SPECIFICATION REFERENCE
Dept. of Defense
MIL-D-3135, Type I, Class 1
U.S. Coast Guard (known as "Dex-O-Tex" Magnabond #1 when
used as Composite with Approved Magnesite.)
164.006/23/0
Maritime Administration
59MS-6a, Type I, Class 1
Date: April, 1996
Crossfield File Code L-110
1/8" (3.175 mm.) to 1-1/2" (38mm.)
do not exceed 3/4" (19 mm.) thickness
per application.
TECHNICAL DATA
Weight:
@1/4" thickness 1.42 p.s.f.
(6.35 mm.) (6.93
kg/m2)
Indentation:
2000 p.s.i. - 1/2 hr. 6% average
(140.9
kg/cm2)
Fire
Rating:
U.S. Navy Fire Retardant
"K" Factor (mean temp. 70°F.)
1.38
(mean temp. 21°C.)
Flow at Elevated Temp.:
200°F./4 hrs.
None
(93°C./4 hrs.)
Corrosive Effect:
Steel/Aluminum
None
Adhesive Strength:
Shear
(Over 10.6
kg/cm2)
_______________________________
TYPICAL USES
To smooth a deck overall to receive finishes of uniform
gauge thickness:
For lightweight filing;
To create pitch to drains; Thin Ceramic Tile
bed;
To Underlay
Magnesite.
_________________________________
ADVANTAGES
Lightweight;
Good adhesion;
Resilient;
Flexible;
Trowels smooth;
Good indentation resistance;
High insulation value;
Sound deadening;
Fire retardant.
