Chemical Name	Blend of MBTS & Basic Accelerators
Chemical Structure	Physical blend of accelerators MBTS, DPG & HMT
Product Specification
Parameter	Limits	Test Method
Product form	Powder (OT)	-
Color	Cream	-
Melting point (Final) , °C (min)	140, (may vary since a blend)	D 1519
Heat Loss, % (max)	0.5	D 4571
Ash, % (max)	0.75	D 4574
Paraffinic Oil (<0.2% PCAH), %	1.0-2.0	NOCIL G-40
Residue on 150 µm sieve, % (max)	0.10	D 4570
Residue on 63 µm sieve, % (max)	0.50	D 4570
Typical Data
Specific gravity at 25°C	1.40	D 1817
Bulk density, kg/m3	350 - 390	NOCIL G-44
Bulk density (Comp), kg/m3	450 -490	NOCIL G-44
Product Information
Solubility	Soluble in chloroform. Partly soluble in ethyl alcohol & solvent naphtha. Insoluble in benzene & petroleum ether.
Classification	Semi ultra fast accelerator.
Discoloration & Staining	Non-discoloring and Non-staining.
FDA Approval Status	Contains MBTS hence regulated for use in articles in contact with food under FDA 21 CFR 177.2600, 175.105 and BgVV XXI, Categories 1-4.
Toxicity Data (Please refer to the latest  Toxicological information.)	The basic accelerator components of the blend may be harmful if swallowed and can cause eye/skin irritation.
Handling & Personal Protection	Ensure good ventilation and avoid creating dusty atmosphere. In case of eye or skin contacts wash out with clean water for at least 15 minutes. Obtain medical advice urgently. If swallowed, seek immediate medical assistance
Storage	Store at room temperature in a cool, dry and well ventilated place. Avoid exposure of the packaged material / product to direct sunlight & heat.
Packaging
Paper-Fabric Bag	20 kg
FIBC	-
Storage Life	12  months
Color code	Brown colored broken strip.

Pilcure F is a semi-ultra fast accelerator blend for NR, SBR, BR, NBR and other highly unsaturated diene rubbers. It readily disperses in rubber compounds, and has been specially formulated to avoid grit formation on prolonged storage. Pilcure F has a long curing range and is very active above 115°C. Pilcure F gives fast curing characteristics for polyisoprene rubber (e.g. NR) based compounds. At equal dosages in NR, Pilcure F is less scorchy than MBT and exhibits almost similar or slightly faster cure rate and higher state of cure as compared to MBT or MBTS and hence the stress-strain properties of the vulcanizates are also superior. Thus, Pilcure F can be used as a single accelerator for rubber compounds where faster curing rates are desired.

Normal dosages of Zinc oxide and Stearic acid are necessary as cure activators for Pilcure F. Pilcure F accelerator based cure systems can be further boosted using small proportions of TMTM / TMTD to improve the rate of cure with considerable compromise on scorch and reversion resistance particularly if dithiocarbamate accelerators are used as boosters. Pilcure F accelerator based systems can be retarded by using small proportions of Pilgard PVI or other acid retarders. Stearic acid also acts as an effective retarder and improves flow-properties of the rubber compounds during molding operations. Pilcure F is a better choice for the manufacture of white/colored products as compared to thiazole class accelerators alone.

Pilcure F and its combinations with booster accelerators are widely used in NR, SBR, NR-SBR / BR blends, NBR based rubber compounds used for the manufacture of rubber products such as cycle tyres (black " colored), footwear products, hot air cured rubber products, cables, rubber rollers, ebonites etc.

TYPICAL DOSAGES OF PILCURE F
Product	Rubber	Accelerator /  Sulphur, phr
		F	MBTS	TMTD	ZDBC	S
Cycle Tyre Treads Colored Cycle Tyres Casing	NR-RR NR-SR NR-SR NR	1.0-1.2 1.2-1.5 1.2-1.5 1.2-1.5	- - - -	0.0-0.15 0.15-0.25 - 0.1-0.2	- - 0.2-0.3 -	2.2-2.5 2.0-2.2 2.2 2.75
Footwear Microcellular Solings Soles & Heels Colored Footwear Parts Hot air cured footwear	NR-SBR NR-SBR NR NR/SR	1.2-1.5 1.0-1.3 1.0-1.2 1.3-1.5	- - - -	0.0-0.10 0.0-0.20 - 0.1-0.2	- - 0.2-0.4 -	2.2-2.5 2.0-2.2 1.8-2.0 1.8-2.0
Hot Air Cured Products	NR/SBR	1.3-1.5	-	-	0.2-0.4	2.2-2.4
Cables	NR	1.5	-	-	-	0.8-1.0
Molded & Extruded Goods	NR SBR NBR	0.8 1.0 1.2	0.4 0.4 0.3	- 0.0-0.2 0.0-0.2	- - -	2.2-2.5 2.0-2.2 1.5
Hard Rubber Products Rollers Ebonite products	NR NR	1.5 2.0-3.5	- -	- -	- -	4.0-8.0 30.0-35.0