Recommendation Brake Fluids

8/8/2019 Recommendation Brake Fluids

http://slidepdf.com/reader/full/recommendation-brake-fluids 1/19

1Brake Fluids

Process and Lubricant Additives

Ciba’s Recommendation

to Formulate

Brake Fluids



2 Brake Fluids


Brake Fluids

Ciba’s Recommendation Brake Fluid:

• Amine - O 0.80 % w/ w

• Sarkosyl - O 0.20 % w/ w

• Irganox L-135 0.15 % w/ w

• Irganox L-57 0.15 % w/ w

• Irgamet 39 0.05 % w/ w

• PAG base fluid Balance

• Surpasses all the requirements of DOT-3, DOT-4 and SAE J-1703 specifications



3 Brake Fluids


Brake Fluids

Components

Ciba’s product:

• Amine-O: Corrosion inhibitor (imidazoline derivative)

N N2

R

1

R



4 Brake Fluids


Brake Fluids

Components Cont’n.

Ciba’s product:

• Sarkosyl-O: Corrosion inhibitor (N-acyl sarcosine)

3

R C N CH COOH

CH2

O



5 Brake Fluids


Brake Fluids


Ciba´s product:

• Irganox L-135: High molecular weight phenolic antioxidant.

2 2CH -CH -C-O-R||O

HO



6 Brake Fluids


Brake Fluids


Ciba’s product:

• Irganox L-57: Aminic antioxidant (Octylated / Butylated diphenylamine)

R'

N

H

R



7 Brake Fluids


Brake Fluids


Ciba’s product:

• Irgamet 39: Metal deactivator (Tolutriazole derivative)

N

N

N

CH NR'

2 2

R



8 Brake Fluids


Brake Fluids

Specifications

• SAE J-1703 (Society of Automotive Engineers)

covers motor vehicle brake fluids of the non- petroleum type for use in the braking system of any motor vehicle such as car, truck, bus, or

trailer.

• This standard is the basis for all other specifications for brake fluids.



9 Brake Fluids


Brake Fluids

Specifications Cont’n.

• The American Department of Transit (DOT) has issued

a classification of brake fluid qualities as a function of their boiling point as follows:

DOT-3 DOT-4 DOT-5 Dry boiling point 401° F 446° F 500° F

Wet boiling point 284° F 311° F 356° F



10 Brake Fluids


Brake Fluids


DOT-3 Specification :

• It is designed for conventional synthetic fluids based on glycol ethers. This specification has long been used in most cars and light trucks.



11Brake Fluids


Brake Fluids



• It is designed for new types of fluids not based on conventional synthetic fluids, but compatible and completely miscible with them

in all proportions.• This is the specification most widely used for

cars and trucks.



12 Brake Fluids


Brake Fluids



• It is designed for the “premium silicone fluid”.The silicone will not absorb water, which means it will never become moisture contaminated with age.

• Silicone's inability to disperse "slugs" of moisture that may be trapped or accumulate in the brake system may result in localized corrosion.

• Silicone brake fluid also contains about three times as much dissolved air as glycol based fluids (15 % vs 5 %), which makes it unsuitable for vehicles with anti-lock brakes.





14 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data T e st Re su lt s SA E J-1 7 0 3

S p e c i f i c a t i o n

6 . C o r r o sio n P r o t e ct i o n

a ) W e ig h t C h a n g e ( m g / cm 2 ) T in n e d I ro n

S t e e l

A lu m in u m

C a st I r o n

Brass

C o p p e r Z i n c

b ) P it t in g / Ro u g h e n e s

T in n e d I ro n

S t e e l

A lu m in u m C a st I r o n

Brass

C o p p e r

Z i n c

0 . 0 0 9

0 . 0 0 2

0 . 0 0 9

0 . 0 1 7

0 . 0 1 8

0 . 0 1 0 0 . 0 1 2

N il

N il

N il N il

N il

N il

N il

0 .2 m a x im u m

0 .2 m a x im u m

0 .1 m a x im u m

0 .2 m a x im u m

0 .4 m a x im u m

0 .4 m a x im u m 0 .4 m a x im u m

N il

N il

N il N il

N il

N il

N il



15 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data Test Result s SAE J-1 7 0 3

Specification

7. Fluidity and Ap p earan ce at

Low Tem pera tures At -4 0 ° C

a) Air b ub le travel t im e

b ) Strat if icat ion

c) Sedim ent at ion

d) Crystall ization

e ) U ni form ity , app earance

and clar it y

At - 5 0 ° C

a) Air b ub le travel t im e

b ) Strat if icat ion c) Sedim ent at ion

d)Crystall ization

e ) U ni form ity , app earance

and clar it y

3 s

N il

N il

N il

Like th e o r ig in al

p roduct a t 23

+/ - 5° C

1 5 s

N il N il

N il

Like th e o r ig in al

p roduct a t 23

+/ - 5° C

10 s m axim um

N il

N il

N il

Like t he or iginal

p roduct a t 23

+/ - 5° C

35 s m axim um

N il N il

N il

Like t he or iginal

p roduct a t 23

+/ - 5° C



16 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data Test Results SAE J-1703

Specification

8. Evaporation a) Weight loss

b) Gritty or abrasive residue

c) Pour point of residue

70 %

Nil

- 10° C

80 % maximum

Nil

Below - 5° C

9. Water Tolerance

At -40° C

a) Air buble travel time

b) Black contrast lines

c) Stratification

d) Sedimentation

At 60° C

a) Stratification

b) Sedimentation

4 s

Discernible

Nil

Nil

Nil

Nil

10 s maximum

Discernible

Nil

Nil

Nil

0.05 % volume max.



17 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data

Test Results SAE J-1703

Specification 10. Compatibilit

At -40°

a) Black contrast lines

b) Stratification c) Sedimentation

At 60°

a) Stratification b) Sedimentation

Discernibl

Nil Nil

Nil Nil

Discernibl

Nil Nil

Nil 0.05 % volume max.



18 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data

Tes Result SAE J-170

Specificatio

11. Resistance to Oxidatio a) Weight change (mg/cm2)

Aluminum stri

Cast Iron stri

b) Pitting / Roughene

Aluminum stri

Cast Iron stri

c) Gum formatio

0.00

0.19

Nil

Nil

Nil

0.05 maximu

0.30 maximu

Nil

Nil

Traces maximu



19 Brake Fluids


Brake Fluids

SAE J-1703 Specification Performance data Test Results SAE J-1703

S pecification

12. Effect on Rubber

70 h at 70° C a) Hardness increase

b) Hardness decrease

c) Disintegration

d) Increase in the diameter of

the base of the cups

70 h at 120° C

a) Hardness increase

b) Hardness decrease c) Disintegration

d) Increase in the diameter of

the base of the cups

Nil

3 points

Nil

0.4 mm

Nil

5 points Nil

0.6 mm

Nil

10 points maximum

Nil

0.15 - 1.4 mm

Nil

15 points maximum Nil

0.15 - 1.4 mm

Documents

Recommendation Brake Fluids