PILCURE SDBC
  • Overview
  • Compounding Information
  • Application

Chemical Name

Sodium dibutyldithiocarbamate.  (NaDBC)

Chemical Structure

CAS Reg. No.

136-30-1

Mol. Wt.

227

Product Specification

Parameter

Limits

Test Method

Product form

Liquid

-

Color

Yellow - Brown

-

Assay  ,%

49.0-51.0

NOCIL 02-3-334

pH

9.0-12.0

NOCIL G-42

Free Alkali, % (max)

1.0

NOCIL 02-3-334

Typical Data

Density at 25°C, gm/cm3

1.10

D 891

Product Information

Solubility

Soluble in water and ethyl alcohol. Insoluble in solvents.

Classification

Ultra fast accelerator.

Discoloration & Staining

Non-discoloring and Non-staining.

FDA Approval Status

Regulated for use in articles in contact with food under FDA 21 CFR 177.2600 , under BgVV XXI, Categories 1 (Latex based products) and Categories 2-4.

Toxicity Data
(Please refer to the latest
Toxicological information.)

May be harmful after absorption and can cause alcohol intolerance. Prolonged contact may cause eye irritation.
May cause dermatitis on repeated skin contact.

Handling & Personal Protection

Never store in metal containers, avoid contact with any metal.
Avoid material contact with any acid as flammable and toxic vapors may be released.
Avoid eye and skin contact. Use safety glasses, PVC-gloves & apron. In case of eye contact, wash with clean water immediately for 15 minutes, In case of skin contact, wash with plenty of soap and water repeatedly. Avoid inhalation of fumes. Use safety mask. In case of ingestion or inhalation; seek medical advice.

Storage

Store at room temperature in a cool, dry and well ventilated place. Avoid exposure of the packaged material / product to direct sunlight & heat. Avoid freezing below 0°C.

Packaging

Plastic containers

50 kg (or higher capacity suitable containers on request).

Storage Life

Stable for six months when stored as stated above.

Color code

None

Pilcure SDBC is an ultra fast water soluble dithiocarbamate accelerator which can vulcanize NR, SBR, NBR, latex based compounds even at room temperature. Pilcure SDBC is suitable for all vulcanization methods used in the latex goods manufacturing technology.

Pilcure SDBC is very active above 90°C – 100°C and activates cure systems based on ZDC, ZDBC, ZMBT and MBT in NR/SR latex compounds in the presence of zinc oxide.

As a primary accelerator, Pilcure SDBC is used at 1.0-3.0 phr dosage in latex compounds based on NR, SBR, NBR, lattices to initiate vulcanization from 90°C - 100°C. As a booster accelerator the dosage of Pilcure SDBC is in the range of 0.25-0.75 phr.  Due to its faster activation rate, the Pilcure SDBC based / boosted latex compounds exhibit rapid increase in viscosity and   have a limited shelf life.  

Although, Pilcure SDBC alone can also vulcanize latex compounds, the vulcanizates do not attain high degree of cure and hence Pilcure SDBC is generally used as a booster accelerator. 

Pilcure SDBC boosted vulcanizates offer good resistance to heat aging without any discoloration and the vulcanizates are practically odorless and tasteless.

The rate of vulcanization of Pilcure SDBC can be boosted with small proportions of thiazole, thiuram and guanidine accelerators and can be retarded by 2- mercaptobenzimidazole.

The vulcanization temperature in excess of 125°C should be avoided to prevent over cure effects on the vulcanizates. 

Pilcure SDBC is also suitable for vulcanization of thin-walled dry rubber based products in hot water.

Pilcure SDBC can be diluted with water to appropriate concentration before addition into latex compound. Aqueous solutions of Pilcure SDBC have good storage stability; however, the solubility of solid contents in Pilcure SDBC deteriorates after some time and a freshly prepared solution appears slightly turbid.  This turbidity generally does not affect the efficiency of Pilcure SDBC.

It is recommended to store Pilcure SDBC in a cool and dry place in the form of aqueous solution to ensure its stability. Pilcure SDBC should not be allowed to freeze and solidify.

 Pilcure SDBC can be used for the production of latex dipped products, transparent / light colored products.