Meltric Full-Line Catalog

DEVICE MATERIALS AND THEIR RESISTANCE TO ENVIRONMENTS AND CHEMICALS

Polymeric Materials Casings – The common technical name for the “Poly” material used by MELTRIC is PBT or PBTP (Polybutylene Teraphthalate). It consists of a special blend of thermoplastic polyester, fiberglass and elastomers which provides outstanding resistance to most chemical agents and environmental conditions, including UV and gamma rays. This material also offers high impact resistance across a broad spectrumof temperatures (shock resistance ratings to IK08). Interiors – The arc chambers for most MELTRIC devices are made of Polyamide. Other materials are used such as Melamine and Bakelite. Accessories – Handles, angles and wall boxes are made of Polyamide (they are supplied with self tapping screws). Metal Materials

Interiors (Polyamide)

Handles (Polyamide)

Poly Casings (PBT)

Products with Poly (PBT) casings

DSN20. DSN30, DSN60, DSN150 DS20, DS30, DS60, DS100, DS100C DR30, DR50, DR100, DR150 DXN20, DXN30, DXN60 DSN24c, DSN37c, DS7c, DR7c

Resistance of Polymeric Casings to Various Chemical Agents *

see note on following page

Polyester

Polyamide

Polyester

Polyamide

reinforced glass fiber

reinforced glass fiber

Agent

Agent

23°C 60°C 80°C 23°C 60°C 80°C

23°C 60°C 80°C 23°C 60°C 80°C

Butyl acetate Ethyl acetate

White spirit

✫✫ ✫✫

✫✫ ✫✫ ✫✫

✫✫ ✫✫ ✫✫

✫✫ ✫✫ ✫✫

Ether

✫ ✫

Acetone

Freon 11 Glycerine Glycol Grease Heptane Hexane

Acetic acid

5%

– – –

– –

✫✫ ✫✫ ✫ ✫ ✫

✫ ✫ ✫ ✫

✫✫ ✫ ✫✫ ✫

10% 10% 40% 10%

– – –

✫✫ ✫ ✫ ✫ ✫✫ ✫✫ ✫✫ ✫

Hydrochloric acid

✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫

Chromic acid Citric acid Formic acid Nitric acid

–

✫✫ ✫✫ ✫✫

✫✫ ✫✫

✫✫ ✫✫

✫✫ ✫✫ ✫✫ ✫

Cotton seed oil

5%

✫✫ ✫ ✫ ✫ ✫

✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫

Silicon oil

10%

–

✫✫ ✫ ✫ ✫ ✫✫ ✫✫ ✫✫ ✫ ✫✫ ✫✫ ✫✫ ✫

Oleic acid

Processing oil

100%

Phosphoric acid

Diesel oil Olive oil Mineral oil Engine oil

3%

30%

– – – –

– – – –

✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫

85% (conc)

Sulphuric acid

3%

Plant oil

30%

Ethyl alcohol Methyl alcohol

Ammonium hydroxide 10%

✫✫ ✫✫ ✫✫

✫✫ ✫✫

✫

✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫

conc

– – – – –

Aniline

Potassium hydroxide

1%

–

– – – –

– – – –

Benzene

10%

✫ ✫ ✫✫ ✫

✫✫

Soda Bicarbonate

Sodium hydroxide

10%

1%

–

✫✫ ✫✫ ✫

Potassiumbichromate 10%

10%

✫✫

✫✫

Sodium bisulphate

Calcium hypochlorite

10%

–

✫✫ ✫

✫✫ ✫

✫✫ ✫✫ ✫✫ ✫

Butane Butanol

Sodium hypochlorite 10%

–

–

✫✫

✫✫

Isopropanol Braking liquid

✫ ✫

✫

✫ ✫

✫

Soda carbonate

10% 20%

– –

– –

✫✫ ✫✫ ✫✫

✫✫ ✫✫ ✫ ✫✫ ✫ ✫

✫✫ ✫✫ ✫✫ ✫✫

Methylethycetone Perchlorethylene

✫✫ ✫ ✫✫ ✫✫

✫✫

Disulphuric carbonate Calcium chloride Potassium chloride Sodium chloride

–

✫✫ ✫✫ ✫✫ ✫✫

✫✫ ✫

10% 10% 10%

Potassiumpermanganate 10%

– – – –

✫✫ ✫✫ ✫✫ ✫ ✫✫ ✫ ✫✫ ✫ ✫✫ ✫ ✫✫ ✫✫

✫✫

Oil

– – – –

–

Hydrogen peroxide

3%

✫✫ ✫✫ ✫✫ ✫✫

Detergents

1%

30%

✫✫ ✫ ✫✫ ✫

Soap solution

25%

1%

–

–

✫✫ ✫✫

Dibutylphtalate Dichlorethane

Carbon tetrachloride Tetrahydrofurane

✫✫ ✫✫ ✫✫

–

✫

✫

Dioxane Water Bleach

Toluene

–

✫✫

✫✫

✫✫

Trichlorethylene

–

✫✫ ✫ ✫✫ ✫

✫✫ ✫✫ ✫

✫

✫✫ ✫ ✫

Vaseline

✫✫ ✫✫

✫✫ ✫✫ ✫✫ ✫✫ ✫✫ ✫✫

Gas

Xylene

✫✫ ✫✫

✫✫

✫✫

Turpentine

✫✫✫

✫ = Good – = Poor

✫✫ = Excellent

Legend:

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