Restoring - General discussions that span across many different groups of years and models > Body, Paint & Sealers
Strip caulk (butyl) vs Rope caulk
CharlesTurner:
--- Quote from: preaction on March 21, 2017, 07:12:41 PM ---Was the assembly line product used black in color ? I have seen this type (black) on restored cars.
--- End quote ---
Yes, but seems to turn dark gray with age.
J_Speegle:
--- Quote from: preaction on March 21, 2017, 07:12:41 PM ---Was the assembly line product used black in color ? I have seen this type (black) on restored cars.
--- End quote ---
Yes IMHO :)
You will find it used at the rear quarter panel extension holes near the back edge of the quarter panel on 65-6, around quarter extension mounting nuts, fender to inner fenders, gas tank mounting and plenty of other places
svo2scj:
http://i38.photobucket.com/albums/e136/svo2scj/100_3619.jpg
I figured if it turned white faster than the 35 years the first stuff took I would be ok !
Mark
J_Speegle:
--- Quote from: svo2scj on March 21, 2017, 08:01:01 PM ---http://i38.photobucket.com/albums/e136/svo2scj/100_3619.jpg
I figured if it turned white faster than the 35 years the first stuff took I would be ok !
Mark
--- End quote ---
Yep that was the service replacement/NOS stuff they use to sell. Had a couple of rolls/boxes of the stuff. Just threw it away since I could not bring myself to selling it to some other restorer.
CharlesTurner:
I bought a couple different styles recently. The eastwood stuff seems to be too deep black in color.
As far as the 3M stuff. I have been using it since the late 80's. I know for a fact that it wasn't always the sticky messy type that it is now. Maybe it was changed to that style in 2004 as indicated in the reply from 3M. Regardless, I don't believe the current 3M style is correct at all in replicating what was on the cars originally. It works and makes maybe 95% of folks happy, but if we're going for authenticity, it simply does not hit the mark.
As far as defining the term 'rope caulk', I don't know if it's just a generic term, but most definitions I have found say it is putty based. https://en.wikipedia.org/wiki/Rope_caulk
The 3M stuff is most definitely butyl-based now, more like butyl cord or butyl tape.
Ford assembly manuals note ESB-M4G32-A, black sealer, .19" diameter
Synthetic resin plastic sealer
This sealer is specified for hand application and is applied in daubs or extruded beads or ribbons as required
SAE standards page for 'Synthetic resin plastic sealer':
http://standards.sae.org/j250_195905/
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