ʻO Rosin resin SOR138 he rosin glycerine resin i hoʻolālā ʻia no ka ʻoihana hoʻoheheʻe wela wela, nona nā mea maikaʻi o ke kala māmā, kahi palupalu kiʻekiʻe, kiʻekiʻe viscosity a me ka pale wela maikaʻi.He kūpono no ka EVA wela wela adhesive a me ka wela wela a me nā ʻoihana ʻē aʻe.