DEGOL HB (for Brake Fluid)

SPECIFICATION OF DEGOL HB

A mixture of polyethylene glycol ethers of minimum reflux boiling point 215 0C. Used as a component of hydraulic fluids and as a water-soluble solvent and coalescing agent.

TECHNICAL DETAILS : TYPICAL PROPERTIES

The above typical figures do not constitute a specification.

TEST METHODS
ASTM standards are published by the American Society for Testing and Materials, 1916 Race Street, Philadelphia Pa. 19103, USA. IS specifications are issued by the Indian Standard Institute.

APPLICATIONS
One of the major use of DEGOL HB is as ingredients in hydraulic brake fluid formulations, and as a water soluble solvent and coalscing agent. These formulations exhibit low change in viscosity with temperatures and have high boiling points, which prevents vapour lock and excessive evaporation loss. They due to their excellent solubility characteristics hold all of the components in a single phase over a wide range and provide a tolerance for small quantities. Also the formulations provided exhibit relatively non-corrosive nature, have a good thermal stability and low pour points.

DEGOL HB is most suited to formulate a heavy duty or DOT-3 specification Brake fluid. This product can be compounded with PEG-200, Blown Castor Oil or other suitable glycol's, to formulate the Brake Fluid.

Other additives such as Triethanolamine to adjust the pH and Corrosion Inhibitors, Antioxidants can be incorporated to pass all the required tests.

Attached chart show the suitability of DEGOL HB making DOT - 3 or Heavy Duty Brake Fluid.

Preferred Diluents : 1. PEG 200 2. DEG 3. Blown Castor Oil 4 . Higher Ethers of Glycol

Preferred Additives : 1. Bisphenol 2. Benzotriazole 3. Borax 4. Triethanolamine
                            5. Sodium Nitrate 6. Butylated Hydroxy Toluene

Formulation with PEG 200 : Degol HB 60% to 80% PEG 200 20% to 40%

This gives ERBP around 230 deg.C for DOT3 and Higher DECOL HB gives ERBP 275 DOT4 and viscosity at 40 deg.C 1300 cst. Max.