MAX GPE FOR GENERAL CONSTRUCTION LOW COST APPLICATIONS
SAFE TO USE ON POLYSTYRENE FOAM
MAX CLR HP CRYSTAL CLEAR HIGH PERFORMANCE APPLICATION
NONE YELLOWING
ALIPHATIC POLYURETHANE TOP COAT

NOTE HOW THE WATER
BEADS WHEN THE WATER IS APPLIED OVER THE COATED AREA

MAX SEAL
1
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MAX SEAL
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MAX GPE
FOR GENERAL CONSTRUCTION
SAFE TO
USE ON POLYSTYRENE FOAM

MAX CLR-HP CLEAR HIGH PERFORMANCE APPLICATION
MAX HTE A/B FOR HIGH TEMPERATURE APPLICATIONS
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Specimens
were cured 3 Hours at 25˚C plus 2 Hours At 155˚C
CLICK ON
THE PICTURE TO PAGE OR PLAY
Step
Three: Proper Lay-Up Technique
Pre-lay-upnotes
Layout
the fabric and precut to size and set aside
Avoid
distorting the weave pattern as much as possible
For
fiberglass molding, insure the mold is clean and adequate mold
release is used
View
our video presentation above "MAX EPOXY RESIN MIXING TECHNIQUE"
Mix
the resin only when all needed materials and implements needed are
ready and within reach
Mix
the proper amount of resin needed and be accurate proportioning the
resin and curing agent. Adding
more curing agent than the recommended mix ratio will not promote a
faster cure. Over
saturation or starving the fiberglass or any composite fabric will
yield poor mechanical performance. When mechanical load or pressure
is applied on the composite laminate, the physical strength of the
fabric should bear the stress and not the resin. If the laminate is
over saturated with the resin it will most likely to fracture or
shatter instead of rebounding and resist damage.
Don’t
how much resin to use to go with the fiberglass?
A
good rule of thumb is to maintain a minimum of 30 to 35% resin
content by weight, this is the optimum ratio used in high performance
prepreg (or pre-impregnated fabrics) typically used in aerospace and
high performance structural application.For
general hand lay-ups, calculate using 60% fabric weight to 40% resin
weight as a safe factor. This will insure that the fabricated
laminate will be below 40% resin content depending on the waste
factor accrued during fabrication.
Place
the entire pre-cut fiberglass to be used on a digital scale to
determine the fabric to resin weight ratio. Measuring
by weight will insure accurate composite fabrication and
repeatability, rather than using OSY data.
Typical
fabric weights regardless of weave pattern
1 yard
of 8 OSY fabric at 38 inches wide weighs 224 grams
1 yard
of 10 OSY fabric at 38 inches wide weighs 280 grams
Ounces
per square yard or OSY is also know as aerial weight which is the
most common unit of measurement for composite fabrics.
To
determine how much resin is needed to adequately impregnate the
fiberglass, use the following equation:
(Total
Weight of Fabric divided by 60%)X( 40%)= weight of mixed resin needed
OR
fw =
fabric weight
rc =
target resin content
rn = resin
needed
MASTER EQUATION
(fw/60%)x(40%) = rn
FOR EXAMPLE
1 SQUARE
YARD OF 8-OSY FIBERGLASS FABRIC WEIGHS 224 GRAMS
(224 grams
of dry fiberglass / 60%) X 40% = 149.33 gramsof
resin needed
So
for every square yard of 8-ounce fabric,
It
will need 149.33 gramsof
mixed resin.
Computing
for resin and curing agent requirements based on
149.33 grams of
resin needed
MIX RATIO
OF RESIN SYSTEM IS 2:1 OR
50 PHR (per
hundred resin)
2 =
66.67% (2/3)
+
1 = 33.33%(1/3)
=
(2+1)=3 or
(66.67%+33.33%)=100% or (2/3+1/3)= 3/3
149.33x
66.67%= 99.56 grams of Part A RESIN
149.33x
33.33%= 49.77 grams of Part B Curing Agent
99.56+
49.77 = 149.33
A/B
MIXTURE
Common
Factors Of 100% Solids (Zero volatiles and unfilled epoxy resin)
1 gallon
of resin = 4239 grams (1.12 g/cc)
1gallon
= 128 fluid ounces
1 gallon
of resin = 231 cubic inches
1 fluid
ounce of resin = 33.17 grams
Apply
the mixed resin unto the surface and then lay the fabric and allow
the resin to saturate through the fabric.
NOT THE
OTHER WAY AROUND
This
is one of the most common processing error that yields sub-standard
laminates. By
laying the fiberglass unto a film of resin, less air bubbles are
entrapped during the wetting-out stage. Air
is pushed up and outwards instead of forcing the resin through the
fabric which will entrap air bubbles. This technique will displace
air pockets unhindered and uniformly disperse throughout the
fiberglass with minimal mechanical agitation or spreading.
Note
the slide show presentation
PLACE CURSOR
ON THE PICTURE TO PAUSE AND PLAY SLIDE SHOW
Typical
Fiberglass Reinforcing Technique Unto A Wood Substrate
PLACE CURSOR
ON THE PICTURE TO PAUSE AND PLAY SLIDE SHOW
For
Vacuum Bagging Process

VACUUM BAGGING
INSTRUCTIONAL VIDEO
MAX
BOND LOW VISCOSITY A/B
LAMINATE CONFIGURATION
FLAT PANEL
USED FOR
STRUCTURAL APPLICATIONS
ROOM TEMPERATURE
CURED
HEXCEL
7781 9 OUNCE 8-HARNESS SATIN WEAVE TOP AND BOTTOM PLIES
PLUS
15 LAYERS
CORE 24-OUNCE FIBERGLASS PLAIN WEAVE ROVING
LAMINATE CONFIGURATION
CONTOURED SPEAKER ENCLOSURE
MAX CLR-HP
A/B
used
FOR CARBON
FIBER CRYSTAL CLEAR HIGH PERFORMANCE SINGLE PLY
12-OUNCE 2X2 TWILL WEAVE CARBON FIBER
Given enough time and the proper selection of the fabric's surface treatment (fabric to resin compatibility), a dry fabric will seek a state equilibrium and distribute the applied resin and naturally release air bubbles entrapped within the laminate. It is then very important that the proper viscosity, working time and surface treatment of the fabric must be considered depending on the application of the composite structure. There are also fabricating techniques that can be employed to yield high performance laminates. Depending on the size of the part, processes such as high pressure pressing, vacuum bagging and vacuum assisted resin transfer molding are superior methods over hand dry lay-up. Air voids or porosity within the laminate is typically where failure propagates when load is applied(fracturing, compression failure, tearing, torque, tensile strength, creep).
VACUUM RESIN FUSION PROCESS WITH MAX 1618 A/B
ADOBE FLASH PAYER MUST BE INSTALLED IN YOUR BROWSER

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