EN
ZHTest Method: SATRA TM402D
Preparation of sponge rubber- moulded-on bonded test assemblies for adhesion tests
December 2016
SCOPE
This method is intended to describe the preparation and bonding, with or without heat curing adhesives, of direct vulcanised test specimen assemblies for use in peel tests. The method is applicable to vulcanisable sponge rubber, against suitable upper materials such as leather and various textiles.
PRINCIPLE
Standard procedures are used to prepare bonded test assemblies using techniques as close as possible to those used in shoe manufacture, particularly for sole attaching. The method is applicable to sponge rubber moulded-on test assemblies for the peel test, SATRA TM401. The procedure described in this test method copies the process used in the shoe factory for the moulding of sponge rubber mid-solings onto uppers in constructions such as slippers with a fabric upper, or work boots with a leather upper. The sole facer skin and unvulcanised sponge compound is placed in a heated base mould and an upper material test specimen is pressed against the base, using a heated ‘foot’ plate, for the required length of time for the sponge rubber to expand (‘blow’) and bond to the upper and facer skin. The method can be used to determine the suitability of adherend materials (e.g. rubbers, uppers) for the sponge rubber process with standard curing adhesives, or the suitability of trial adhesives (or no adhesive) towards standard sponge rubber and upper adherend materials.
REFERENCES
SATRA TM401 – Peel strength of adhesive bonds.
HISTORY
First issued as SATRA AM2 July 1981. Revised May 1988, April 1997 (incorporating SATRA AM21). First issued as SATRA TM402D: December 2016.
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