Plexus/Devcon Polyurethane/Hybrid Structural Adhesives Selection Guide
EMEA Adhesive Selector Guide
选型目录：
Company Introduction
MMA Structural Adhesives
Polyurethane/Hybrid Structural Adhesives
Epoxy Adhesives
6
7
How to use
Plexus products!
Product
Description
Chemistry
Mix Ratio
Working
Time
min.
Fixture
Time
min.
Tensile
Strength
(MPa)
Tensile
Elongation
%
Max. Gap
Fill (mm)
Part A
Viscosity,
cP x 10
3
Part B
Viscosity,
cP x 10
3
PU2105
Primerless to Metal, No Odor, Low Shri
nk, Non-Flammable
PU
1:1
3 - 5
20 - 35
25.5 - 30.0
~5
12.7
60 - 90
60 - 90
H4110
Primerless to Metal, Elastic, Low Shrink,
Non-Flammable
Hybrid
1:1
8 - 12
50 - 65
4.1 - 6.9
150
-
40 - 80
40 - 80
Gelcoats
RTM
Aluminium
Cold Rolled Steel
Galvanized
/ Zinc
Coated
Galvaneal
Fiberglass
SMC
Rubbers
Metals
Stainless Steel
E-Coat
Powder coat
Coatings
Acrylics
Polyamides (Nylons)
Polycarbonate
Rigid PVC
ABS and ASA
Plastics
Other
Composites
Plexus 1:1 Polyurethane/Hybrid Structural Adhesives
Product Recommendations
Plexus two-component adhesive systems are designed to be
applied between 18-27°C. Lower temperatures will slow cure
speed, higher temperatures will increase cure speed. The
viscosity of both components is affected by temperature. For
consistent dispensing, it is best practice to maintain relatively
constant application temperatures throughout the year.
For maximum bond strength, ensure the joint is completely
filled, and mate the parts within the specified working time.
After joining, the parts must remain undisturbed until the fixture
time has elapsed. Clean-up should be done before the adhesive
is cured. In case of cured material, carefully remove adhesives
by mechanical means, and clean as needed.
Product Recommendations
Surface Preparation:
Devcon epoxies work best on clean
surfaces. Surfaces should be free of heavy deposits of grease,
oil, dirt or other contaminants, or cleaned with industrial
cleaning equipment such as vapour phase degreasers or hot
aqueous baths. Abrading or roughing the surfaces of metals will
increase the microscopic bond area significantly and optimize
the bond strength.
Mixing:
Cartridges should be used with an applicator gun and
a static mixer. The static mixer nozzle allows the material to be
thoroughly mixed when dispensed, so it can be applied directly
to the surfaces being bonded. Please note: Once the product
Plexus product shelf-life ranges from 7-13 months. Consult
product TDS for specific information. Shelf-life is based on
continuous storage at 12-25°C. Prolonged exposure to higher
temperatures (>35°C) quickly reduces product reactivity and
should be avoided. Products should never be frozen.
Consult product SDS for detailed safety and handling
information. Product SDS are available at:
itwpp.com
Working Time
– The time period that begins when the two
adhesive components are mixed and ends when the
adhesive is no longer usable for bonding. Values shown are
tested at 24°C.
Fixture Time
– The time required after joining for the adhesive
to develop cohesive strength of 0.35 MPa at 24°C
Tensile Strength
– The ultimate cohesive strength of the
material tested according to ASTM D638.
Spills should be cleaned-up with absorbent material, and
handled as flammable material. (See Plexus SDS and follow
local regulations for disposal).
Plexus adhesives can be applied with hand-held applicators or
pumping equipment through a static mixer.
ITWPP Technical Services should be consulted regarding
wetted components of dispensing equipment. Refer to
equipment manuals for preventative maintenance, cleaning,
and shut-down procedures. Contact ITWPP for further
information.
goes beyond its working time, the nozzle must be thrown away
and a new nozzle used for further dispensing.
Application:
Apply mixed epoxy directly to one surface in an
even film or as a bead. Assemble the parts within the
recommended working time. Maintain firm contact between the
parts to ensure good contact of the epoxy between the mating
parts, clamping may optimize this part of the process. A small
volume of epoxy should flow out the edges to show there is
adequate gap filling. For very large gaps, apply the adhesive to
both surfaces and spread to cover the entire area, or make a
bead pattern, that will allow material to flow throughout the joint.
Let bonded assemblies stand for the recommended functional
cure time before handling. They are capable of withstanding
processing forces at this point, but should not be dropped,
shocked, or heavily stressed.
Storage / Shelf Life:
Devcon epoxy adhesives should be
stored in a cool, dry place when not used for a long period
of time. A shelf life of 1 year from date of manufacture can
be expected when stored at room temperature (22ºC) in
their original containers. For product information, visit
itwpp.com
Preferred
Good * Use PC-120 cleaner / conditioner
Blank
Not Recommended or call ITW Performance Polymers
Product
Colour
Mix Ratio
(vol./vol.)
Mixed
Viscosity,
cP * 10
3
Working
Time
1
min.
Fixture
Time
2
min.
Functional
Cure
2
,
min.
Lap Shear
Strength,
(MPa)
Tensile
Elongation
(%)
Peel
Strength,
(N/cm)
Max. Dry
Service
Temp.(°C)
Dielectric
Strength,
(KV/mm)
One Minute
TM
Epoxy Gel
Translucent
1:1
70
45 sec.
1
30 - 45
11.0
1
4 - 5
-40 - 93
19.6
5 Minute Epoxy
Amber
1:1
10
3 - 6
10 - 15
45 - 60
13.0
1
4 - 5
-40 - 93
19.6
2 Ton Epoxy
Clear
1:1
8
8 - 12
30 - 35
120
15.5
1
4 - 5
-40 - 93
24
Epoxy Plus 25
Grey
1:1
70
25
210
1440
19
20
35 - 45
-40 - 93
21.6
HP250
Straw
1:1
105
65
300
1440
25
25
60 - 70
-40 - 121
21.6
*
*
Polyester (PET, PBT)
Gel-Coat
Aluminium
Cast Iron
Copper
Cold-Rolled Steel
Vinyl (PVC)
RTM
SMC
Phenolics
Fiberglass
Metals
Coated Metal
Brass
Plated Metal
ABS
Acrylic
Polyamide (Nylon)
Polycarbonate
Stainless Steel
Plastics
Composites
Devcon Epoxy Adhesives
1. Based on 28g mass @ 23°C. 2. Tested at 23°C.
Preferred
Good * Use PC-120 cleaner / conditioner
Blank
Not Recommended or call ITW Performance Polymers
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