Just Undercoated a 64

[64studeavanti]

I have just finished undercoating one of the 64s. Used 3M rubberized #544. Took about 3 gallons using a cheap tcp global undercoat gun.

 

[Mark63Avanti]

Wow, looks like the bottoms of my old MatchBook cars!

[mfg]

Looks super!… Aren’t Fiberglass cars wonderful ? !!!!!!!!!

[64studeavanti]

The 3M 544 dries harder than I expected. Was hoping for something similar to the old asphalt base. Thought about just coating the fenders and rear wheel wells. However, all four of the Stude Avantis I own have full undercoating. Some PO may have applied the undercoat as all have been repainted at some point.  I will say the hardest part of the job was removing the old asphalt undercoat. Lots of scraping, heat gun and mineral spirits. 

Here is pic before new undercoat. Was a little sloppy with the black paint on the metal bits since I had already decided to coat the entire bottom.

 

[Stacey]

Looks like you cleaned up the bottom very well. When I used to blast the bottoms with walnut shells they looked like yours, very smooth and clean.

[64studeavanti]

I tried both walnut shells and soda.  The old undercoat was too soft. Both kinds of media just bounced off.

[tanda62]

Looks really nice!