Izogam

Isogum is obtained from the composition of bitumen and its processing and basically has two layers. The bottom layer consists of a polymer membrane that is used as a solid background and is often reinforced with glass fibers.

Types of isogams based on the type of fibers

1. Two layers (two types of fibers are used in making isogum

2.Single layer (a type of fiber used in making isogum)

Two-layer isogum components

1.Aluminum foil (foil) or polyethylene film (plain)

2.Tissue

3.polyester

4.Bitumen 70-60 + A.P.P or S.B.S polymer or (polymer juice)

5.Polyethylene film

Components of monolayer isogum

1.Aluminum foil (foil 9 or polyethylene film (plain))

2.Thermobonding

3.Bitumen 70-60 + A.P.P or S.B.S polymer or (polymer juice)

4.Polyethylene film

Isogum production methods in Iran

1.Polymer method (bitumen 70-60 + A.P.P or S.B.S polymer)

2.Oxide: remove 60-70 bitumen and replace it with blown bitumen (fuel oil) or sludg