Acetone?

[WCR]

I have recently been recommended to use acetone to dry out chips prior to repair....basically drill the damage and then use a cotton bud to dab in some acetone and then heat with blow torch and then use a vacuum pump...

is this an effective method, and also what effect would the residue from the acetone have on the resins that would be injected for repair?

[screenman]

WCR
Did you get this tip from me as it is the technique I have used for the past 18 years.

However I have over the last months been running tests using Deltas chip dryer and I can tell everyone here it is a piece of kit well worth buying especially as it is not very expensive to buy.

The chip dryer will not replace the torch for very large 2 inch type chips but it certainly speeds up drying out smaller bullseyes and starbreaks etc.

The reason it does this is due to the fact it only heats up a very small area and this allows the hot spot to cool down quicker than with a blow torch which heats a larger area. I have also found that when drying bullseyes using the chip dryer theres noticeably less pressure ring than when using any other dry out system.

As you all might know in the UK we have some experience with moisture as I have not reapired a dry chip in the last 7 months.

If any one would like to know more of my experience with this bit of kit please PM me.

I would like to thank Jeff for giving me the opportunity to try this excellent tool.

Please excuse any spelling or grammatical errors I have had a couple of pints hic!!

[WCR]

Screenman

Re my question, you did not really answer my query re the effects of acetone on the resin applied to the break.....

[ChipMaster]

none what so ever just be sure to evaperate the acetone with out putting to much heat on the chip . its a very delicate process so practice before actual use .using a torch or jet lighter i recomend just a couple waves to get the job done . after getting it down it will become useful when needed,like on rainy cold days , and I have notice if you do it just right the resin flows right on in and looks great.also i have found it best to use something like a droper and drop the acetone just above the impact point and let it run down inside the damage. hope this helps:)
ChipMaster out

[GlassStarz]

If I remember correctly from a previos post Jeffs take on it was the stuff is bad for the laminate so use only as a last resort. Often heat alone will move it but the limey would be the expert on wet and damp it never really drys out over there.

[Delta Kits]

Dry out solution = melted laminate.

Melted laminate = BAD.

Some people swear by it, so you can decide for yourself, but if you ever want to run a test, pour acetone, alcohol, et al. on PVB (laminate) and watch the fun

[Bois]

I took chemistry in college. Isn't acetone flamable? There goes the ws.

[Layne]

Bois--

I am a retired explosives,pyrotechnic and industrial safety manager. Acetone has a very sensitive flammability range and it is more hazardous than gasoline.

It is extremely sensitive to electro-static discharge...a charge that is often accumulated on the human body in very low humidity atmospheres. If you elect to use it--take great care in dispensing from the container into a smaller vessel.