Gum Rosin / Gondorukem / Getah Pinus / Siongka / Greek Pitch / Colophony - 1 Kg

Gom Rosin / Gondorukem / Siongka / Getah Pinus
Isi : 1 Kg
Bentuk : kristal kecokelatan (bongkahan)
Made in Indonesia

Arpus merupakan getah dari pohon pinus, salah satu fungsi untuk pembuatan bahan baku karbol. Dan masih banyak fungsi lain nya.

Rosin, also called colophony or Greek pitch (Latin: pix græca), is a solid form of resin obtained from pines and some other plants, mostly conifers, produced by heating fresh liquid resin to vaporize the volatile liquid terpene components. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperature. Rosin is an ingredient in printing inks, photocopying and laser printing paper, varnishes, adhesives (glues), soap, paper sizing, soda, soldering fluxes, and sealing wax. A mixture of pitch and rosin is used to make a surface against which glass is polished when making optical components such as lenses. Rosin is added in small quantities to traditional linseed oil/sand gap fillers, used in building work.