Adhesive for bonding roll linings, friction plates and other materials on metal

EMPLOY METHOD

1) Metal surface must be sandblasted and degreased. Sandblasting process increases both the mechanical adhesion and the total surface
2) Apply a film of adhesive on the lining surface. Thickness dry film must be included between 30 40 microns dry (up and running to the friction material absorption)
3) Dry fully the adhesive s film (12-24 hours @ room temperature or with forced drying for example 10
minutes@80°C). At the end the adhesive must not be sticky, but can be softened or wiped off with MEK
TAKE CARE THAT THE MAX RESIDUAL SOLVENT AFTER DRYING MUST BE 5%
4) Put the components to be bonded together under a constant pressure included between 8-10 Kg/cm²
(flexible linings) or 18/20 Kg/cm² (rigid linings), keep pressure during the entire bonding cycle.
5) The ideal trend or, in other words, the correct ratio time/temperature is indicate in the CURE GRAPH ( page 4
) with the sky-blue line. The maximum peak during the bonding process must be 200°C. Overpeak or prolonged time may cause brittleness in final adhesive s film with resulting decrease in shear loads

Adhesive Technical Data Sheet

Adhesive is a thermosetting adhesive based on a blend of phenolic resin and modifiers agents supplied in solution with aliphatic solvents). This adhesive is used in bonding process of the most various kinds of linings on metallic brake shoes especially if in the lining is present a quantity (in weight) of graphite more than 10%.

DRYING CYCLE

The adhesive film must be dried for 20-30 minutes@ 70-80°C

CURE CYCLE

Read the points employ method / general observations and cure curve

VULCANIZATION

The adhesive AR 2030 KTE/9TX vulcanises as described in the Cure Curve under a steady pressure
* of 10 Kg/cm² for soft (extruded) linings
* of 18-20 Kg/cm² for rigid (moulded) linings

RESISTANCE AT SOLVENTS

After vulcanization the adhesive is not soluble in water, hydraulic fluid and other chemical products for car, as well as in alcohol and ketones.

EMPLOY METHOD

1) Metal surface must be sandblasted and degreased. Sandblasting process increases both the mechanical adhesion and the total surface
2) Apply a film of adhesive on the lining surface. Thickness dry film must be included between 30 40 microns dry (up and running to the friction material absorption)
3) Dry fully the adhesive s film (12-24 hours @ room temperature or with forced drying for example 10
minutes@80°C). At the end the adhesive must not be sticky, but can be softened or wiped off with MEK
TAKE CARE THAT THE MAX RESIDUAL SOLVENT AFTER DRYING MUST BE 5%
4) Put the components to be bonded together under a constant pressure included between 8-10 Kg/cm²
(flexible linings) or 18/20 Kg/cm² (rigid linings), keep pressure during the entire bonding cycle.
5) The ideal trend or, in other words, the correct ratio time/temperature is indicate in the CURE GRAPH ( page 4
) with the sky-blue line. The maximum peak during the bonding process must be 200°C. Overpeak or prolonged time may cause brittleness in final adhesive s film with resulting decrease in shear loads

BOND CHARACTERISTICS

Bond strength is usually stronger than the friction s material cohesion both at room and high temperature testing.

SHEAR TEST ON LABORATORY TEST TUBE

Referring norm :   FIAT 9.55709 SAE J1523

TEST TUBE

• 100 mm x 25 mm x 0,8 mm // Bonding area 3,25 square centimetres
• FEPO4l steel degreased and sandblasted or sandpapered or also with chemical treatment

The adhesive fulfils these requirements.

SHEAR TEST ON BRAKE SHOES
Referring norm : FIAT 5.00608
Break load : >/= 20 daN/cm²
The adhesive fulfils this requirement.

FLASH POINT

This adhesive is FLAMMABLE
It must not be used near flame or sparks
It s flash point is at 17°C

SOLVENTS

It s not advisable to dilute this product during roll application. Dilution is advisable only if, during the roll
application, a substantial increase of viscosity happens (due to a natural solvent evaporation)
The product can be diluted with MEK/ETHANOL/METHANOL/ISOPROPANOL. The solvent addition
must be done stirring the adhesive. To clean equipments or place of work the same solvents can be used.

STORAGE

Stored in a well sealed container and in fresh and dry place (between +4 and +25°C) the adhesive s shelf life is 12 months from production s date.

HEALT AND SAFETY

See Material Safety Data Sheet (MSDS)

NOTE

Whilst all reasonable care has been taken in the compilation of this data sheet, it is the customers responsibility to determine the suitability of the product of the desires application. It is strongly recommended that each liner type be thoroughly tested before production usage.

GENERALS OBSERVATIONS

The employment technical norms upper shown have only an indicative and general value and no compulsory. Each manufacturer, in its own cycle, must assure to give during bonding process an optimal time-temperature ratio. Modifications to the described conditions at chapter VULCANIZATION are possible and sometimes useful, in comparison to different kind of friction material mixture to bond on the metallic support. In bonding process, the correct ratio time/temperature is indicate in the CURE GRAPH with the sky-blue line The correct dry adhesive s thickness film is 30-40 microns.
Thickness variations are possible and sometimes useful, in function of friction s material kind
(porosity/absorption).

OUTPUT GRAPH CURVE

Here we present a study regarding how many adhesive ,in grams,(G) is necessary for a square meter (SM) to obtain a defined dry film thickness measured in microns (microns)
This, obviously, is intended a theoretical output. The practice output is depending to the application system, environmental conditions and customer s experience.

OUTPUT GRAPH CURVE

Here under we present a study about how many protective, in grams, (g) is necessary for 1m² or 1 cm²  to obtain a defined dry film thickness measured in microns (µ).  
This, obviously, is intended a theoretical output. The true output depends to the application system, environmental conditions, experience, wasting and so on.

OUTPUT GRAPH CURVE

Here we present a study regarding how many adhesive ,in grams,(G) is necessary for a square meter (SM) t obtain a defined dry film thickness measured in microns (microns)
This, obviously, is intended a theoretical output. The practice output is depending to the application system environmental conditions and customer s experience.

MICRONS	G/SM
2	4,5
2,5	5,6
3	6,8
3,5	7,9
4	9,0
4,5	10,1
5	11,3
6	13,5
8	18,0
10	22,5
13	29,3
16	36,1
20	45,1
25	56,3