What is really THICK spackle call? I was watching an episode of RATE MY SPACE on HGTV and...

I was watching an episode of RATE MY SPACE on HGTV and this guy was trying to Spackle up a porthole frame that a dog had scratched up really bad...He said instead of using really spackle, to use this THICK Spackle (I thought he call it AUTO FILLER, a carpenter's trick). I did a search on Goggle and found NOTHING...
Anyone know for sure what it is called?

TY, GUYS.
Dry wall mud or shared compound? Caulking of some sort? thackle


Ditto for "Logan's" comment, I am a millwork architect and cabinetmaker. The "Rock-Hard" putty is excellent, drys swiftly, no shrinkage, can be tinted, fortified with metal or wood dust to make it harder or easier to sand depending on application. Oh, did I mention its cheap? Well it is, its be around for years. Once you become familiar with its working properties you will find yourself going to it again and again for household and professional applications. Was he using "Plaster".

Jer
Answers:    They be using a polyester resin epoxy mix commonly referred to as BONDO.

Bondo being the trademark name for the most popular product on the auto body souk.

While they make products for many different applications, I prefer using Durhams Rock Hard putty, as it is a fraction of the cost of bondo, and is a hose based mix, being smaller number harsh and less volatile as bondo.

But bottom rank, both will work.


I see a thumbs down crybaby has been lurking around here
Thick spackle is sometimes called "mud"...usually concrete putty or compound??
I use the rock tricky putty too..in a powder in a can and you mix as you want...it is in truth called "durhams rock hard putty"..here is a picture Home depot.lowes everywhere roughly has it.. It was any "Wood Filler" or "Bondo"

I prefer wood filler if its a smaller area. Bondo is used to auto repair usually.