Test Method: SATRA TM70

Heat shrinkage of cellular solings

July 2001

SCOPE

This test method is intended to determine the degree of shrinkage of cellular soling materials when they are subjected to heat, in shoemaking or service. In addition, the test is an accelerated means of estimating the degree of shrinkage which may occur over a long period of time at normal temperatures. The method is applicable to all cellular and microcellular solings, including higher density semi-expanded materials or suitable material cut from finished soles.

PRINCIPLE

The soling material is reduced to a standard thickness and rectangular test specimens cut. Pairs of marks are made on each principal surface of the test specimens. The distance between the marks is measured before and after heating the test specimens under specified conditions, and the percentage shrinkage calculated.

REFERENCES

BS 5131: Section 2.7: 1980 (1992) - The preparation of test pieces from soling materials for physical testing.

HISTORY

First issued May 1970. Revised April 1989, July 2001.

AVAILABILITY

This test method is available to members and non-members.

PRICE (ex. VAT)

This price is for a printed copy of the Test Method.

• Members: £75
• Non-members: £215

TYPE

• Physical and chemical deterioration including flammability

USAGES

• Solings - polyurethane
• Solings - PVC, TR and other thermoplastic
• Solings - rubber, EVA and other crosslinked