BONDERITE M-CR 1132 / 1132 M / 871 AERO Touch-N-Prep applicator pens for no-rinse conversion touch-up of aluminium

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The pens are meant for repairing and touching up the conversion coating on bare aluminium areas that appear during drilling, scuffing, fastener installation, skin repair and corrosion removal. The product is applied straight from the applicator pen onto the prepared surface, without preparing a tank or spraying a chromate solution. The coating dries in place, so water rinsing is not needed. On clean oxide-free aluminium and its alloys a golden protective layer forms, giving adhesion of the paint coating and corrosion resistance of the painted surface. The manufacturer states that such products save labor, material and time and, when used correctly, reduce personnel contact with chromate solutions and the amount of waste, for example rinse water. The pens are used in line and base maintenance, on assembly lines and in repair shops where the conversion layer must be restored on small areas before priming.

How to choose

The choice is simple. M-CR 1132 AERO works on hexavalent chromium, M-CR 871 AERO on trivalent, and M-CR 1132 M AERO is a miniature version of the first with an extended tip for the inner surface of fastener holes and hard-to-reach places. For treating large parts by immersion or spray look at the M-CR 1200S products, and before applying the pen the surface is cleaned with C-AK products.