I recently re-caulked a sectional acrylic tub-shower unit using a color matched acrylic latex caulk that dries to a glossy finish. The job turned out great, except that after a few days, it seems as if the caulk has recessed back into the joint about 1/8-3/16". In addition, a few tiny shrinkage cracks have begun to appear, most about 1/16" long - none longer than 3/32".
With this type of caulk, would it adviseable to apply a SECOND layer over the first, both to fill the small shrinkage cracks and to bring the caulk out closer to the surfaces? This shower has not been used since, so the caulk is still clean, although it has cured.