Use the Ceramic paint from Dupli-Color. This was used on all of my weld
beads and it still looks like new. (Yes...it contains ceramic and holds
up to the exhaust temps.)
DE1612 - Grey Primer
DE1651 - Cast Iron (Charcol colored)
- Bernd
-----Original Message-----
From: owner-dakota-truck@buffnet.net
[mailto:owner-dakota-truck@buffnet.net] On Behalf Of Neil W. Bellenger
Sent: Wednesday, December 19, 2001 8:00 AM
To: dakota-truck@buffnet.net
Subject: DML: RE: Paint muffler?
Subject: DML: Paint muffler?
Andy,
A coat of paint on the muffler won't hurt. However, most of the
corrosion that causes muffler failure starts on the inside. Running the
truck long enough on each trip to heat the entire exhaust system to
vaporize all the moisture that is produced is the single best way to
ensure the muffler will last. Rust starts on the welds first and then
spreads. As to choice of paint, I've found that Krylon, while drying
quicker, produces a thinner film layer that is more brittle and prone to
chipping. The "washing action" of driving through standing water,
creates a lot of force. This can peel paint off in a single winter
season. The chemical composition of our winter puddles doesn't help
either. My choice would be high temperature Rust-olium. The drawback is
longer drying time but it builds a film thickness faster and is a little
more resistant to wear. Now comes the fun part, I'm guessing that the
muffler you have is galvanized. Most paints don't stick well to the zinc
coating, especially shiny new galvanizing. Rust-olium has a product that
is used as a first layer for galvanized surfaces to enhance the paint
bonding but I don't think it's intended for high temps. The alternative
is to lightly sand the surface with fine abrasive to scuff the
galvanized layer without affecting its thickness much.
Neil
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:03:42 EDT