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EPOXY LAMINATING SYSTEMS
AIRCRAFT SPRUCE WEST AIRCRAFT SPRUCE EAST

CORONA, CA (877) 4-SPRUCE PEACHTREE CITY, GA (877) 477-7823
Prices Subject to Change Without Notice
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MGS EPOXY RESINS
MGS epoxy resins are approved for the produc-
tion of certificated aircraft parts. The 335 and 285
systems are especially suited for homebuilders
because of their long shelf lives, excellent work-
ability, physiological friendliness, adjustable cure
rates and excellent static and dynamic strength
characteristics. The 285 system is available with
fast and slow hardeners which can be blended with
each other in any proportion to provide the desired
working life and cure cycle. Pot lives and working times can be adjusted
from fifteen minutes, using the fast hardeners, to six hours, when the
slow hardeners are employed. Once the hardeners have been blended,
the specified resin to hardener mixing ratio must be maintained. The
335 System is available only with fast hardener. Components of the 335
system should not be mixed with those of the 285 system. With both
systems, if only the slowest hardener is used, the cure times should be
extended to a few days, otherwise some brittleness may be noted. While
room temperature curing results in good properties when the faster
hardener combinations are used, some curing at elevated temperatures
or post curing will result in the highest achievable strength and Tg, with
the slower blends. Even unfavorable low temperature and high humidity
conditions in the work environment will not effect the quality of the prod-
uct and high gloss, uncontaminated, tack free surfaces are achievable
every time. The resins do not contain any unreactive dilutants which with
many systems result in de-gassing and bubbling of the painted finish.
The MGS resins do NOT contain aromatic amines. While proper pro-
cessing practices should be maintained, the physiological friendliness
of these systems have been demonstrated by many years of production
experience. The 285 system has slightly higher physicals than the 335
and will also achieve a higher maximum Tg after post curing. While the
335 is more viscous than the 285, after mixing with the appropriate hard-
eners, their viscosities are comparable. MGS systems are used in the
construction of the Cozy, Diamond, Cirrus and other aircraft.
System 285 Prices

L285 Resin (1 Gal.) ............................ P/N 01-41000 ...$137.95

H285F Hardener (.25 gal/1 qt.) .......... P/N 01-41005 ......$32.75

H287S Hardener (.25 gal/1 qt.) .......... P/N 01-41006 ......$32.75
System 335 Prices

L335 Resin (Gal.) ............................... P/N 01-41100 ......$93.75

H335F Hardener (.225 gal/0.9 qt.) ..... P/N 01-41105 ......$32.50

H340S Hardener (Slow) ..................... P/N 01-41106 ......$28.90
Two units of hardener are required for each gallon of resin
EPOXY LAMINATING SYSTEMS
POLYESTER RESINS
Polyester resins are hygroscopic (they
draw moisture from the air). There are two
types of resin, and one or both types may
be required, depending on the ap pli ca tion.
Type A resin has a small amount of wax
in it, which comes to the surface and forms
a barrier against the moisture. This permits
the resin to cure com pletely and the surface
is hard and easily sanded. Bond Coat B
resin does not have any wax content. As
a result the surface stays a little tacky, as
the surface cure is being inhibited by mois-
ture. This tacky surface provides excellent
ad he sion between coats. Bond Coat resin
is therefore recommended for the first coat
of resin to fill the weave of the glass cloth, for bonding fiberglass cloth to
ply wood or other surfaces and for multi-layers of glass cloth.
TYPE A RESIN
#1520-5 is a general purpose ortho surfacing resin intended for the
finishing coat applied over the Bond Coat #1063-5, or for single coat
application. A second coat may be applied after full cure and thorough
sanding but is not rec om mend ed.
1 Qt. Kit with Hardener (Bondo #402) ............P/N 01-00346 ......$33.50
1 Gal. #1520-5 with 1 Oz. Catalyst ...............P/N 01-00347 ......$83.95
5 Gal. #1520-5 with 4 Oz. Catalyst ...............P/N 01-00348 ....$318.95
Additional catalyst may be required. 1 Oz. ....P/N 01-06900 .......$4.35

4 Oz. ...............................................................P/N 01-07325 .......$3.50
TYPE B RESIN
#L253T-20 is a general purpose bond coat ortho resin for use in making
multi laminates. It will not cure to a high gloss finish. Use 1520-5 for fin-
ish coat to obtain smooth, hard gloss finish. Replaces #1063-5.
1 Gal. #L253T-20 with 1 Oz. Catalyst ............P/N 01-00349 .....$56.25
5 Gal. #L253T-20 with 4 Oz. Catalyst ............P/N 01-00350 ...$231.95
Additional catalyst may be required.
Same catalyst used for #1520-5 and #L253T-20.
Note: Use #1520-5 finish coating over #L253T-20 but never use
#L253T-20 over #1520-5.
Above resins are not for use in making fuel tanks. For fuel tanks (except
those for gasohol) use #6060-5 Isophthalic Resin.*
1 Gal. #6060-5 with 1 Oz. Catalyst ...............P/N 01-00351 .....$63.75
5 Gal. #6060-5 with 4 Oz. Catalyst ...............P/N 01-00352 ...$232.95
Additional catalyst may be required.
Catalyst same as for resins listed above.
* Iso Resin is highly flexible. Has excellent adhesion to metal, wood,
concrete, fiberglass and other hard-to-adhere surfaces. Compatible
with most fuels. Iso is a wax-free resin and must be over-coated with
Type A Surfacing Resin to obtain a surface cure.
SURFACE CURING AGENT is used in polyester resin to improve sand-
ing properties. Added to #1063-5 Bond Coat or #6060-5 Iso ph thalic, it
will provide same sanding properties as in Type A Surfacing Resin.
Use in proportions of 2 oz. per gallon of resin. Surface Curing Agent is
used in addition to catalyst.
4 Oz. in Polyethylene Dispenser Bottle .........P/N 01-07100 ........$2.00
Pint (16 Oz.) in Polyethylene Dis pens er Bottle P/N 01-07200 ........$4.25
Gallon (128 Oz.) .............................................P/N 01-07300 .....$55.75
VINYL ESTER RESIN
Dow Chemicals Derakane 411-350 PA Vinyl Ester Resin is an
epoxy-based Vinyl ester designed to provide superior tough ness
and high corrosion resistance. Many leading kit aircraft manufac-
turers use vinyl ester resins extensively due to its quality and ease
of fabrication. We furnish medium pro mot ed vinyl ester 411-350
PA resin which includes CONAP, DMA the resin is cured by adding
the MEKP which is furnished with the kit. Gel times vary according
to the amount of MEKP added and the ambient tem per a ture. Shelf
life of promoted vinyl ester resin is short at only a few months.
mEdIUm PROmOTEd:
Includes CONAP, DMA and other additives. Add MEKP for com-
plete cure: ..............................Gallon ..........P/N 01-07350 ..$43.85
mEKP NORAC CATALYST ONLY (4 OZ.)
....
P/N 01-07325 ....$3.50
Vinyl Ester 1-Gal. Kit (Resin & Catalyst) .....P/N 01-07355 ..$47.50
RESIN: Color may vary by manufacturer.
Typical room-temperature properties of clear
cast ings made with DERAKANE 411 resins
Property
DERAKANE 411-350PA
Tensile Strength, psi
11-12,000
Tensile Modulus, units 105 psi
4.9
Elongation, %
5-6
(DERAKANE 411-350)
(7-8)
Flexural Strength, psi
16-18,000
Flexural Modulus, units 105 psi
4.5
Compressive Strength, psi
16-17,000
Compressive Modulus, units 105 psi
3.5
Compressive Deformation at Yield, %
6.5-7.8
Specific Gravity
1.12
Heat Distortion Temp.,°F
210-220
Barcol Hardness
35
System 285 (Max. Tg 105 C - 110 C; 195 F - 230 F)
Mixing ratio Resin:Hdnr
Pot life
Mixed Viscosity@20C
100:50 by volume
H285-F 40 min
300-500 cp
100:40 by weight
H287-S 4 hours

H285 : H287
40 : 60 2 hours
System 335 (Max. Tg 75 C - 80 C; 160 F - 180 F)
Mixing ratio Resin:Hdnr
Pot life
Mixed Viscosity@20C
100:45 by volume
H335-F 15 min
800 cp
100:38 by weight
H340-S 6 hours
400 cp

H335 : H340
50 : 50 1.5 hours
20 : 80 4 hours
Catalyst
Concentration
Resin Quantity
Quart
Gallon
5 Gallon
1/2%
1/16 oz.
2/3 oz.
1-1/3 oz.
3/4%
1/4 oz.
1 oz.
5 oz.
1%
1/3 oz.
1-1/3 oz.
6-2/3 oz.
1-1/2%
1/2 oz.
2 oz.
10 oz.
CATALYST LARGE QUANTITY CHART
CATALYST SmALL QUANTITY CHART
(20 -30 minute pot life at 2% mix ratio)
Catalyst
Concentration
Resin Quantity - 30 drops = 1 cc
2 oz.
4 oz.
8 oz.
12 oz. 16 oz.
1/2%
9 drops 18 drops 36 drops
1.8 cc 2.5 cc
3/4%
14 drops 27 drops
2 cc
3 cc
4 cc
1%
18 drops 36 drops
2.5 cc
3.75 cc
5 cc
1-1/2%
27 drops
2 cc
4 cc
6 cc
8 cc
2%
36 drops 2.5 cc
5 cc
7.5 cc
10 cc