ERRE GOMMA Srl

The Quality designed for the Customer needs

Polyurethane Covering


Product
SHA
Features
Color
C°
RG/tPOLY(N)
65-95
MDI-PTMEG - ether system with a good level of physical properties and good abrasion, cut and tear resistence. These good mechanical properties are important in different fields,  above all in steel mill rollers.
Blu/
Orange
70
RG/sPOLY(N)
50-95
MDI- ester  system, with outstanding physical properties and chemical resistence.
Blu/
Orange
70
Colata poliureatano


Chemical Properties
(Environmetal polyurethane resistence)
Environment
RG/tPOLY(N)
RG/sPOLY(N)
Heat

Fair

Good
Cold

Good

Good
 Ozone Resistence

Excellent

Excellent
Hydrolysis resistence
Good
Fair
ASTM N°1 Oil

Fair

Excellent
ASTM N°3 Oil


Poor

Excellent
Aliphatic solvents(es. Heptane)


Fair

Excellent
Chlorinated solvents


Poor

Fair - Good
Aromatic Solvents


Poor

Fair
Dilute Acids (e.g. 5% HNO3)


Fair

Fair - Poor
Dilute Alkalies (e.g. 5% NaOH)


Fair

Fair - Poor