Report Abuse A wind breaker, a sweatshirt and long pants are highly recommended for August in San Francisco. Of course if you are venturing into the central valley then shorts and very light weight tops would be appreciated. It could be over 100F in the Valley and only in the 60's in San Francisco on the same day. So the advice is to pack layers.
Bondo (putty) Bondo putty is an automotive body filler and a brand name used by 3M for a line of American-made products for automotive, marine and household repairs.
Talc is hygroscopic (that is, it absorbs moisture) unfortunately, and that's the reason fillers absorb water. The main solvent in the filler is styrene, which vaporizes as the mixture cures. Bubbles in the filler occur when the mixture cures too fast, trapping the styrene gas. Body fillers are thermal-set plastics. That is, they cure with heat (created by the chemical reaction between the filler and the catalyst) and become hard and stable, usually within a few minutes.