E ala i le paʻu graphite, fiber Kevlar ma faʻapipiʻi faʻapitoa faʻapitoa faʻapitoa, faʻaopoopo mea faʻaoga talafeagai, le faʻaogaina o le kopiina o le tulafono.
E ala i le pipii vevela-tetee, asbestos-saoloto vevela-tetee fiva ma inormeric maualuga-vevela filler galulue faatasi faapitoa, faaopoopo le faaopoopoga kemikolo talafeagai, le faaaogaina o faiga kopi faiga faaletulafono.
E ala i le butyl latex, alava e leai ni asbestos ma faʻatumu galuega faʻapitoa galulue faʻatasi, faʻaopoopo i ai faʻaopoopoga vailaʻau talafeagai, le faʻaogaina o le kopiina o faiga faʻaletulafono.
Alava Aramid, alava carbon, fiberglass, ma isi mea e pei o se auivi mea, suauu-tetee pipii galulue faatasi faapitoa, faaopoopo le faaopoopoga kemikolo talafeagai, fillers, le faaaogaina o le faiga faaletulafono mamafa.