Surface preparation recommended procedures

In this test, small spots of the adhesive are placed onto a substrate. Surface preparation, application procedures, and curing conditions are to be as similar as possible to those used in the quantitative test and/or the actual adhesively bonded Joint. The adhesive spots are allowed to cure according to the manufacturers specifications. To test adhesion, this ASTM standard practice recommends the use of a thin stainless steel spatula or similar probe as a prying lever to assess the relative difficulty of removing the adhesive from the substrate. If the results are acceptable, standard quantitative adhesive test procedures can be used to obtain quantitative measurement of the adhesive s performance. 

L.4.3 Approximately 10 to 25 mm (0.5 to 1 in.) of the top of the cementitious foundation material should be scarified with a chipping hammer before the grout is applied. This procedure is recommended to remove low-strength, high-porosity concrete in this area. The concrete foundation should be allowed to cure for at at least 7 days prior to this surface preparation. 

Table 4.3 Recommended procedures for preparing the surfaces of materials for adhesive bonding... 

Finally it should be noted that failures of adhesive joints in service are rare if recommended surface preparation and curing procedures have been followed. 

Metals require surface preparation to form strong bonds to another substrate using adhesives. Surface treatment methods for metals have been covered in Chapter 3 and elsewhere extensively [1]. Surface treatment of metals often involves use of strong chemicals that can cause injury. It is strongly recommended to the readers to consult the surface preparation procedures and the relevant safety, health, and environmental information before attempting to treat metals. Table 6.1 provides highly abbreviated procedures for the surface preparation of a few common metals. 

This manual has been prepared by the Commission on Colloid and Surface Chemistry including Catalysis of the IUPAC. It complements the Manual on Catalyst Characterisation which concerned nomenclature [1] and should be read in conjunction with this earlier manual. The Manual of Methods and Procedures for Catalyst Characterization provides details and recommendations concerning the experimental methods used in catalysis. The objective is to provide recommendations on methodology (rational approaches to preparation and measurements). It is not intended to provide specific methods of preparation or measurement, nor is it concerned with terminology, nomenclature, or standardization. 

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