Black Pudding filling compound mix

I have read the term black pudding, a tar and portland cement mix used to make a strong filling compound for larger working boats, the caulking we have just removed is definitely tar based and had badly blown and cracked, after replacing the decks with Isoflex a liquid rubber mainly used for flat roofs which replaces tar we are going to do a test with Isoflex and portland cement make a paste and test its drying time and strength.

http://forum.woodenboat.com/showthread.php?50936-Black-Pudding-Tar-Caulk&s=a1f7a03c8e310fc1aca53c5383a3a5cd

Isoflex data sheet.

http://trollfelsen.de/downloads/IsoflexDatasheet.pdf

  

We will post our findings.

The result after one night, a success

For any caulking enquiries please call A and D Wooden Boat Marine Services 07765 195 118.