Gum Rosin, also called colophony or Greek pitch, 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 terpenecomponents. It is semi-transparent and varies in color from yellow to black. At room temperature rosin is brittle, but it melts at stove-top temperatures. It chiefly consists of different resin acids, especially abietic acid.
Gum Rosin is distilled from natural resin raw material. Its chemical composition is C19H29COOH, the isomers of resin acid. It is widely used in paints, paper, soap, rubber, food, chemical and pharmaceutical industries with unique significant characteristic
2.Specifications:
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Parameter |
Grade |
||
Standard:Â GB8145-87 |
X |
WW |
WG |
APPEARANCE |
Transparent |
Transparent |
Transparent |
COLOR |
Light Yellow |
Pale Yellow |
Yellow |
SOFTENING POINT(R&B)°C |
77.0 |
76.0 |
75.0 |
ACID NUMBER(mg KOH / g)≥ |
166.0 |
166.0 |
164.0 |
UNSAPONIFIABLE MATTER % ≤ |
5.0 |
5.0 |
5.0 |
ETHANOL INSOLUBLES % ≤ |
0.030 |
0.030 |
0.030 |
ASH CONTENT % ≤ |
0.020 |
0.020 |
0.020 |
3.Package:
225kg drum and 18MT/1x20ft
4.Product uses:
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1. Hot melt adhesive: EVA glue stick, book binding glue, wood glue.
2. Hot melt coating, hot melt adhesive, hot melt pressure sensitive adhesive, ester gum,phenolic resin varnish.
3.Health adhesive, structural adhesive, packaging glue, cigarette adhesive, sealant, adhesive, etc.
5.Our advantage:
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1. Light color, low smell, good thermal stability
2. Greatly improve the EVA adhesive strength
3. Good oxidation resistance
4. Good solubility. It can melt in cyclohexane, toluene, xylene, petroleum ether, ester, acetone and other organic solvents
5. Good intermiscibility. It can be in the formation of a wide range of transparent system with NR, CR, EVA and other polymer.
6.Our facility:
7.FAQ:
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1.How many years have you been in this area?
We have been in chemical for 8 years though we just started to run business on Made-in-China for 1 year.
2.Do you offer free sample?will the postage be free?
We can offer not overn than 500g sample for free and the postage will be paid by us.However,if you asked more than that you need to pay for the postage and also sample.
3.Are you manufacturer or trading company?
We are trading company as you can see on Alibaba.But with 8 years experience you can trust us that we can offer reliable quality and service for you.
4.How can you guarantee the quality?
First of all we welcome any inspection for the quality such as BV or SGS.This is a normal way for international trade.Besides,you can choose the payment as Trade Assurance through Alibaba and with that you can get fully security from Alibaba to make sure the quality is good.
5.If we hope to visit the factory,can you arrange?
Yes of course,but we need you to confirm the order firstly for our own protection.Hope you can understand.
6.Do you have enough stock?
About that depends on your quantity.Plz confirm with our staff before you confirm order.We will be 24/7 on-line!
7.How can we confirm order on-line?
Plz confirm with our staff.
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Dongguan V1 Environmental Technology Co., Ltd. , https://www.v1airpurifier.com