Accelerator DPG(D)

Product name: DPG(D)
Chemical name: Diphenyl guanidine
Structure:

CAS No.: 102-06-7

Item	Granular	Powder	Oil powder
Appearance	Grayish-white granular	Grayish-white powder	Grayish-white oily powder
Initial M.P. (Min) [≥ °C]	145.0	145.0	145.0
Loss on drying [≤ %]	0.30	0.30	0.30
Ash content [≤ %]	0.40	0.40	0.40
Residue on 240 mesh sieve [≤ %]	–	0.10	–
Granular diameter [mm]	1.5-3	–	–
Broken strength [N]	2-5	–	–
Oil content [%]	–	–	1.0-2.0

What is DPG?
DPG (Diphenylguanidine) is a widely used secondary accelerator in the rubber industry. It is typically combined with thiazoles and sulfenamides to improve the curing process of natural rubber (NR) and styrene-butadiene rubber (SBR) compounds. DPG is valued for its excellent storage stability and moderate activity, making it ideal for controlled vulcanization. In latex applications, it also functions as a gelling agent and foam stabilizer, ensuring uniform foam structure in the silico-fluoride foam process. Its versatility and reliability make DPG an important component for manufacturers seeking consistent rubber performance.

Properties:
DPG (Diphenylguanidine) is a non-toxic, odorless compound with a specific gravity of 1.13–1.23. It is soluble in chloroform, toluene, benzene, and ethanol, but insoluble in water and gasoline. DPG is non-hygroscopic, ensuring easy handling and storage.

Applications:
DPG is commonly used as a secondary accelerator in combination with thiazoles and sulfenamides in natural rubber (NR) and styrene-butadiene rubber (SBR) compounds. While less active than thiurams or dithiocarbamates, it provides better storage stability. In latex applications, DPG can serve as a secondary gelling agent or foam stabilizer in the silico-fluoride foam process, enhancing foam quality and consistency.

Packaging:
Available in 25 kg bags.

Storage:
Store in a tightly sealed container in a cool, dry, and well-ventilated area. Under normal conditions, the recommended maximum shelf life is 1 year.