1. Hwɛ w’ani a ɛda adagyaw so .
PE nneɛma a ɛda adi pefee no nyɛ papa, na ne kɔla yɛ fitaa, na ɛma aduan a wɔakata so no yɛ te sɛ nea ɛyɛ mmerɛw; PVC nneɛma a ɛyɛ hyew no ye, na ɛte sɛ nea emu da hɔ na ɛda adi pefee. Esiane sɛ plasticizers wɔ hɔ nti, sɛ ɛda hann mu a, ne kɔla yɛ kɔkɔɔ kakra.
2. Fa wo nsa twe .
PE nneɛma yɛ mmerɛw kakra, nanso ɛyɛ den yiye na ebetumi abubu bere a wɔatrɛw mu awie no; PVC nneɛma no yɛ den a ɛyɛ den na wobetumi atrɛw mu kɛse a ɛrensɛe, na ɛnyɛ den sɛ wobɛbata nsa ho.
3. Fa ogya hyew .
Bere a ogya hyew PE cling film no akyi no, ogyaframa no dan kɔkɔɔ na ɛhyew ntɛmntɛm, na kyɛnere hua bi rehyew; PVC cling film, esiane chlorine a ɛwɔ mu nti, wɔ ogyaframa kɔkɔɔ a ɛyɛ ahabammono bere a ogya hyew no, a ngo biara nni hɔ a ɛyɛ nwonwa. Ɛbɛdum bere a woafi ogya fibea no akyi na ɛwɔ hua a ano yɛ den.
4. Fa gu nsuo mu .
Esiane nsonsonoe a ɛwɔ abien no mu denden mu nti, PE cling film no mu duru sua sen nsu de no, na sɛ wɔde hyɛ nsu mu a, ɛbɛsen akɔ soro; PVC cling film no wɔ density a ɛkorɔn sen nsu na ɛbɛkɔ fam bere a wɔde ahyɛ nsu mu no.
