DESCRIPTION
The HB4 Primer can be used to promote adhesion for all structural bonding tapes, especially on low surface energy substrates. It must always be applied to a clean and dry surface, contaminated surfaces should be cleaned with at least a 50/50 Isopropyl Alcohol and water mixture. Our MBS 1943 Surface Preparation Wipes are ideal for this task. Once applied, allow to dry which usually takes 5 minutes at room temperature. Porous surfaces may require two coats for uniform coverage and good adhesion.