Yellow Liquid Rubber To Metal Adhesive Single Coat Thermal Vulcanization Bonding Agent
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Detailed Product Description
Thinkbond 24S Rubber to Metal Bonding Agent High-performance Single-coat AdhesiveProduct Description:Thinkbond 24S is a high-performance single-coat adhesive used for
thermal vulcanization bonding between various rubbers and metals
and other substrates. It can also be used for the bonding of
vulcanized rubber; and the bonding between rubber and fiber cords,
fabrics such as cellulose, polyamide, polyester and glass. Thinkbond 24S can be used in various molding vulcanization methods,
including molding, transfer, injection, extrusion and other
vulcanization methods. Vulcanization temperature range: 120ºC
-230ºC. It also has excellent pre-curing resistance: 10 minutes at
160ºC without affecting performance, and even 30 minutes at 160ºC.
The dry film will not be washed off during the mold transfer or
injection process, nor will it cause mold contamination. Thinkbond 24S is also suitable for post-cure bonding. Thinkbond 24S is a heavy metal-free product. Thinkbond 24S has the following features 1. High-performance adhesive, widely bonded to the following
rubbers: Natural rubber (NR), chlorohydrin rubber (ECO), styrene-butadiene
rubber (SBR), chlorosulfonated polyethylene (CSM), chloroprene
rubber (CR), acrylic rubber (ACM), butadiene rubber (BR),
Carboxylated nitrile butadiene rubber (XNBR), isoprene rubber (IR),
DuPont's ethylene acrylate rubber Vamac®, ethylene vinyl acetate
elastomer EVA (EVM). 2.Technical characteristics Excellent pre-curing resistance, can be baked at 160ºC for 30
minutes without affecting the bonding performance. There is almost no mold contamination. During the injection
process, the temperature can even exceed 200ºC. Excellent heat resistance – bonded parts can withstand 200ºC Excellent low temperature resistance – withstands -50ºC According to the salt spray resistance test, it can withstand more
than 1,000 hours without load and more than 400 hours with load,
without corrosion. Excellent dynamic and static fatigue resistance. Excellent chemical resistance: solvent gasoline, unleaded gasoline,
kerosene, fuel oil, mineral oil and synthetic oil. Esterified
turbine oil at high temperatures, ethylene glycol and propylene
glycol at high temperatures, acids and bases, hot water including
boiling water. TYPICAL PHYSICAL CHARACTERISTICS:
HOW TO PREPARE THE SURFACE: Prepare the metal surface properly by removing completely oil,
grease and dirt. Blasting the surface with grit blasting steel so that the surface
roughness is greater than 15 µm. For aluminum surfaces, we recommend the use of aluminum oxide as
abrasive. Clean again the substrate to remove dust from blasting residues. Thinkbond 24S can be applied on surfaces treated by chemical
processes such as galvanizing, phosphating, KTL. Application: A. Stir thoroughly: special polymers, resins, fillers, etc. are
dissolved or dispersed in organic solvents. During the parking
process, the dispersed part will settle to the bottom. It is very
important to stir thoroughly before applying adhesive. It is best
to use high-speed mechanical stirring. During use make sure to stir
for 1-2 minutes every 10 minutes or so. B. Dilution: Add diluent while stirring, otherwise it will cause
partly incompatibility. In severe cases, it will cause polymer
precipitation and even adhesive gel. For continuous production of
dipping or spraying stirring must be maintained to ensure that the
diluted adhesive is evenly mixed. C1. Dip coating: For small-sized or simple-shaped metal parts can
be dip-coated directly without dilution. But large-sized or
complex-shaped parts must be diluted. Diluents include toluene,
xylene, 1,1,1, trichloroethane, MEK, or a mixture of MEK and
toluene. In most cases, in order to evaporate and dry quickly MEK
can be used as a diluent. C2. Conventional spraying: Commonly used diluents are toluene,
xylene, or a 1:1 mixture of toluene and butanone. Dilution ratio
(weight ratio): 1 part Thinkbond 924S and 1 part diluent (the two
are mixed in a 1:1 volume ratio). Nozzle size: 0.5-1.0 mm Out put: 330–350 ml/min Atomization pressure: 1.6-4 bar Fluid pressure: 0.5-1.5 bar C3. Airless spray: Thinkbond 24S can be sprayed airless and does
not require dilution. However, dilution with 25% (by volume) of toluene or xylene can
improve the atomization effect. Heating online to 70ºC can also
improve the atomization effect by reducing the viscosity. Nozzle size: 0.25-0.50 mm Pressure: 60-140 bar The size of the nozzle and the pressure of the pump vary with the
angle during spraying, the size of the metal parts, and production
efficiency requirements. C4. Electrostatic spraying: Thinkbond 24S can be sprayed by
electrostatic spraying. Use special spray equipment, conductive
solvents. Viscosity control is the same as conventional spraying Conductivity: 90-100 microamps C5. Brushing: Brushing usually does not require dilution. If
dilution to the specified viscosity is required, toluene, xylene,
or a mixture of toluene and MEK can be used. Note: To clean spray equipment, you can use toluene, xylene, or
1,1,1 trichloroethane. Methyl ketone cannot be used. D. Coating thickness control: No matter which method is used to
apply glue, the most important thing is to apply the adhesive
evenly to ensure optimal and consistent bonding strength. When Thinkbond 924S is used as a single-coat adhesive, the dry film
thickness is not less than 15 microns, and the environmental
resistance is best when the dry film thickness is 25-35 microns.
However, for general applications, the dry film thickness is 20
microns. E. Drying: After applying adhesive it needs to be dried thoroughly.
Insufficient drying will cause solvent to remain in the adhesive
film. When bonded during vulcanization, it will break through the
adhesive film and cause degumming. Usually, dry at room temperature
for 30-45 minutes, or force dry at 80ºC for 5 minutes. If
necessary, the temperature can be raised to 120ºC. Note: When spraying, preheating Thinkbond 924S can reduce drying
time. But the preheating temperature cannot exceed 70ºC. Shanghai LoreChem Co., Ltd. was established in 2008. It is a
high-tech enterprise which is dedicated to serve releasing products
which involve semi-permanent release agent, anti-sticking, surface
lubrication and thermal reactive adhesive. Shanghai LoreChem has
been improving product quality for 15 years. The releasing products
are mainly applied in rubber, polyurethane and composite industry.
The brand of Lubekote for release agent and Thinkbond for adhesive
have been registered in China. Both of them are well known in the
industry. Shanghai Lorechem Co., Ltd. was established in 2008. It is a high-tech enterprise which is dedicated to serve releasing products which involve semi-permanent release agent, anti-sticking, surface lubrication and thermal reactive adhesive. |
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| Product Tags: Yellow Liquid Rubber To Metal Adhesive 1.04g/cm3 Adhesive For Silicone Rubber To Metal Thermal Vulcanization Rubber To Metal Adhesive |
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