3M Dynatron Dyna-Glass Short Strand Filler, 462, 1 qt

A little dry in can

Fast working and very strong product.. Sets up quickly.so small batches and work fast

I have some damage to the keel of my sailboat, so after fairing the area and applying several coats of resin and fiberglass tape, I used the 3M Dynatron Dyna Glass, to protect the keel and prevent water intrusion. It is easy to apply but make sure you make the repair as smooth as possible to reduce the amount of sanding needed for a smooth surface. I had to use several sander disks to get the area smooth enough to my liking.After that, clean surface with alcohol and a tacky cloth and apply several coats of bottom paint.

Hardner had a hole in it. needs better packaging.

If you have a whole by the screen put it in it put that over top of it it'll be like a rock hard to send but a whole very well and that's why you need when you have a hole in your vehicle no other putty will beat that for strength best putty in the planet cost a little bit more but you get what you pay for.

Good body filer and sets up quick. Better than bondo. The can was dented up, don't know if it happened in shipping or it left the seller in that condition.

Main advantages of this type of filler are that it is waterproof and can be built up to thicker sections. I've used it as a thin base coat of filler over welded sections for corrosion protection (also use All-Metal, but this is cheaper). I've also used this in up to 3/4" thick sections when finishing a buck used to create a fiberglass mold. Not as easy to work with as standard talc (or similar) based fillers. The fibers incorporated into the filler are very small diameter and are pretty short but the material does not spread easily because of the fibers, it kind of sticks to itself. Sands well down to a fairly smooth surface that needs to be top coated with standard filler to produce a smooth enough finish (in my opinion). Definitely harder than standard filler. Very consistent results.

This stuff is wonderful...and by wonderful I mean you better wear a respirator or it will make you high very quickly. It is easy to work with. Gives you plenty of spread time. It sets up quick and makes a super hard and durable patch. Once you sand and prime, you can't even see the fix. I'm not sure if it is better than the cheaper stuff, but I'll buy this again because it seemed to do such a great job.