Background Insulating strips made of polyamide are initially dry but the profiles will absorb moisture from the environment in the course of time after manufacture. The rate and level of moisture absorption of polyamide profiles mainly depend on the ambient humidity, ambient temperature, and storage period. Due to the change of ambient temperature, humidity, the polyamide profile itself absorbs moisture from the air. Moisture saturated polyamide profiles will result in a change in its size and mechanical strength.
	In summer time, the temperature and relative humidity in warehouses are higher than usual, the insulating strips absorb more moisture than in cool and cold days, even when stored properly for brief periods. An excessive moisture content (greater than 2%) will affect the assembly process and/or cause blistering during the coating process. In addtion, irregularities or insufficient support storage may cause the polyamide profiles to bend, distort and sag at the end portion due to prolonged stress, thereby affecting the subsequent assembly with the aluminum frames.
	Our Suggestion: Δ  Store the polyamide profiles in ambient temperature within the range of 15 to 20 ºC. Δ  Store the polyamide strips in a dry, dust-proof, covered or well-sealed rooms. Δ  Flatly piled up, fully supported.