Yet again, primer might have differing environmental demands into a base coat. Prime coat (e.g. polyurethane) can be different in its environmental sensitivities to base coat. Other than temperature concerns, a typical guideline is the fact you shouldn't apply Epoxy Resin Floor Paint Should the humidity is bigger than 85% or even the temperature is below 5°C. https://www.propanraya.com/id/produk/epoxy-fast-dry