Rubber to Metal Adhesive 828 Equivalent to Chemlok 238, Thixon
814-2
Application
Surface treatment agent for RUBBER bonding. Used as a surface
coating in conjunction with Dual Coat substrate surface treatment
agent, suitable for the following rubbers:
Natural rubber (NR), Nitrile butadiene rubber (NBR), Butyl rubber
(IIR), EPDM, etc
Characteristics
As a topcoat, used in conjunction with substrate surface treatment
agent.
Environmentally friendly, free of heavy metals, in line with
GB33372-2020, ROSH 2.0;
Excellent bonding properties -- non-polar rubber；
Good weather resistance - heat resistance, water resistance,
solvent resistance, oil resistance, salt resistance, corrosion
resistance;
Physical Properties
Component: Polymers, organic compounds, inorganic fillers and
organic solvents
Color: Black
Viscosity: 200 ~ 800cps @25℃, Brookfield LV2 30rpm
30 ~ 60s @25℃, No.3 Zahn Viscosity Cup 2
Solid Content: 12 ~ 16 %(By weight)
Flash Point: 25℃
Dilute release agent: Xylene
Storage, Room temperature: Unopened container for 12 months
- Applying 828
- Stirring: Rubber to Metal Adhesive 828 in the long-term storage process will have some precipitation at
the bottom of the container, before the glue must be fully stirred,
to achieve uniform mixing before use; If the gluing process is
long, stir at a high speed for 3-5 minutes at an interval of 2
hours.
- Dilute: According to the actual operation needs, this product can
also add diluent for appropriate dilution. After dilution, it must
be stirred for more than 30 minutes to achieve uniform mixing
before use, ensuring that all components are evenly dispersed. It
is recommended to dilute the diluted product according to the
amount used. The diluted product cannot be stored for a long time.
- Brush coating method: no dilution is required;
- Roller coating method: no dilution is required;
- Dip: 100 parts of 828 plus about 10-30 parts of diluent;
- Spray method: 100 parts Rubber to Metal Adhesive 828 plus about 20-40 parts diluent.
- Coating: This product can be applied by brush coating, dip coating,
roll coating, spray coating and other methods. Coating should be
uniform to avoid excessive spillover.
Cover coating: Dry film thickness(DFT) 12-25μm. 20μm is recommended
20-40μm for harsh
environment；
Single coating: DFT 15-25μm, 22μm is recommended.
- Drying: Drying at room temperature takes about 45-60 minutes,
forced drying can shorten the drying time,recommended drying
temperature is 60-80℃.
- Product storage: This product should be stored in dry and normal
temperature environment, avoid long-term exposure to high humidity
and high temperature environment. According to the need can be
cured immediately after drying, and pollution should be avoided
during parking.
- Cleaning: Before heating vulcanization, dip a rag in xylene solvent
to remove excess treatment agent spilt around. Once cured, solvent
cannot be removed.
- Vulcanization: Vulcanization of rubber and adhesive at the same
time can obtain the best bonding properties. When the coating is
placed in the molding mold, it should be quickly filled with rubber
vulcanization. The actual curing condition depends on the curing
condition of the rubber.
Notes
Rubber to Metal Adhesive 828 storage temperature should not be lower than the recommended
temperature (below 15 ℃), otherwise gel will appear. If this
situation occurs, the Rubber to Metal Adhesive 828 can be sealed and heated to 25 ℃ , and then stirred at high speed
until it returns to normal state before normal use.
Precautions
- This product is volatile, please close the container after use.
- Solvent steam is harmful, pay attention to fire prevention in the
workplace, pay attention to low ventilation, prevent long-term
inhalation or long-term skin contact.
Please refer to SDS for more safety information.
