Black in color. LDPE is defined by a density range of 917-930 kg / m3. At room temperature it is not reactive, except for strong oxidants; some solvents cause it to swell. It can withstand temperatures of 65 ° C (149 ° F) continuously and 90 ° C (194 ° F) for a short time. Made in translucent and opaque variants, it is quite flexible and durable. LDPE has more branching (on about 2% of carbon atoms) than HDPE, so its intermolecular forces (instantaneous dipole-induced dipole attraction) are weaker, its tensile strength is lower and its resilience is higher. The lateral branches mean that its molecules are less tightly packed and less crystalline, and therefore its density is lower.