Re: "Master Bait'R" Restore Thread
Resin needs 60 for an extended period of time, 12hrs +/-. Below 60, the resin may not be able to generate enough heat (gets hot enough to deform a plastic bucket if left in the bucket too long) to properly catalyze. The resin needs the exothermic reaction to cure properly. The surfaces you are bonding to need to be at 60 too during the resin's cure time.
I suggest you fire up all the halogen lamps you've got & get a heater started SOON, the temps will quickly drop after dark.....
If you make an error in calculating the amount of MEKP, and under catalyze a layup, someone posted that they had been instructed by a fiberglass manufacturer or supplier to slightly over catalyze the next layup & it would aid in curing the previous layup.
For example: If the ideal MEKP for your work time & ambient temps is 1.5% and you think you may have only used 1.3%, the next batch should be smaller then normal (mixed 'hot' it will kick faster) & mixed at 1.75%+/-....
It does not mean to mix at 2.5% MEKP, over cooking the resin is counterproductive too.
If the above example is workable, then I think it makes it difficult to add a layup too early. Laying up multiple layers at once, and as soon as a previous layer tacks over applying an additional layer also indicates to me that it'd be hard to add additional layers too soon. As long as the previous layer has cured & bonded sufficiently that you aren't moving it around or pulling it loose while you are working the next layup, I don't see any problem proceeding early.
NOTE: Too many layups added quickly 1 after another, or too many layers laid up all at once and the resin can over cook itself with the exothermic reaction.
...