Factory Supply Wholesale Gum Rosin Ester CAS 8050-09-7 Rosin/Colophony

• Type: Resin Rosin
• Usage: Industrial, Paper Making, Chinese Medicine, Water Treatment Chemicals
• Packaging: Drum
• Color: Light Yellow
• Product Name: Gum Rosin
• Boiling Point: 300 ºC(0.67 Kpa)
• Model NO.: gum rosin
• MOQ: 17metric Ton
• Melting Point: 110 - 135 ºC
• Purity: 99%
• Transport Package: Drum
• Specification: 225kg/Drum
• Origin: China
• Production Capacity: 50000tons/Year

Product Description

DESCRIPTION

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.

Grade	X	WW	WG	N	M	K
Appearance	Transparent Solid
Color	slightly yellow	pale yellow	yellow	deep yellow	yellow brown	yellow red
	Correspond to the Standard Glass Color Piece of Rosin
Softening Point (R&B),°C, min	76		75		74
Acid Value, (mgKOH/g), min	166		165		164
Alcohol insoluble Substance ,(%) , max	0.03		0.03		0.04
Unsaponifiable matter, (%) ,max	5		5		6
Ash, (%) ,max	0.02		0.03		0.04

FAQ
Q1: How to start orders or make payments? 
A:You can send our your Purchase order(if your company has), or just send a simple confirmation by email or by Trade Manager, and we will send you Proforma Invoice with our bank details for your confirmation, then you can make payment accordingly.

Q2: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

Q3: What's your MOQ? 
A:For the high value product, our MOQ starts from 1g and generally starts from 10gs. For other low price product, our MOQ starts from 100g and 1kg. 

Q4:Is there a discount?
A: Yes, for larger quantity, we always support with better price.

Q5:How do you treat quality complaint?
A:First of all, our quality control will reduce the quality problem to near zero.