Adhesive RF / DESMODUR RF

Short Description:

Chemical Name: Tris(4-isocyanatophenyl) thiophosphate

Trade Name: Adhesive RF, Desmodur RF

CAS 4151-51-3

Component:

Tris(4-isocyanatophenyl) thiophosphate :20%

Methylene chloride (MC): 80%

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Product Detail

Product Tags

Product Description

Our RF or JQ-4, is a clear yellow color universal curing agent for adhesive based on hydroxyl polyurethane (PU), natural and synthetic rubbers. The RF can be used whenever sensitive materials need to bond, in particular to rubber materials, mostly for graft-adhesive. Adding our RF into adhesive can trigger a crosslinking reaction to harden the adhesive. Thus, it can bond the material firmly, in particularly to rubber materials. Furthermore, RF is good to applied on pale-color demanding products.

Product Features

RF is a two-component adhesive. After a certain proportion of RF is added to the adhesive, this mixed adhesive must be used within the operational period (pot life) which is influenced not only by its content of rubber, but also by other ingredients of the formulation (e.g. resins, antioxidants, solvents, and etc.). When the operating period is not used in time (usually delayed by a few hours or even one working day), the adhesive will become very thick and too viscous to use.

Product Application

RF can be used as an adhesive for rubber and metal, and as a crosslinking curing agent for rubber solution adhesives and solvent-based polyurethane adhesives.

The amount is generally 4% to 7% of the above-mentioned solvent-based adhesives. It is especially used for bonding colorless or light-colored products.

Application including:

- Bonding for vulcanized (or unvulcanized) rubber and PVC, PU, SBS and other polymers bonding of materials and metals (iron/aluminum).

- As a curing agent for neoprene adhesives to improve the bonding strength; curing agent for rubber and fabric bonding.

- As a cross-linking agent for the hydroxyl components of polyurethane products (elastomers, coatings, etc.).

- As a cross-linking agent for hydroxyl-terminated polyurethane adhesives used in the shoe industry, which can improve the initial adhesion strength, heat resistance and other indicators.

- Mostly applied on footwear, suitcase, bags industries to bond the fabric with PVC and/or PU.

Usage information

For curing adhesive of 100 parts by weight (p.b.w.) based on:

Graft-Chloroprene rubber(rubber content approx. 16%)	3-5% p.b.w. RF
Chloroprene rubber(rubber content approx. 20%)	5-7% p.b.w. RF
Hydroxyl polyurethane(polyurethane content approx. 15%)	3-5% p.b.w. RF

Generally, the usage amount of curing agent is about 3%~5% of the adhesive, but when the humidity in the air increases, the amount of curing agent should be slightly increased. However, please don’t add over 10%. Meanwhile, when the room temperature increases, the reaction speed of the curing agent and the adhesive increases, too. Therefore, the amount of curing agent should be decreased.

Packing & Storage

Packing:

Type 1. 750g/bottle, 20 bottles in one carton, 24 or 30 cartons in one pallet;

Type 2. 20kg/drum, 18 drums or 27 drums in one pallet;

Type 3. 55kg/drum, 8 or 12 drums in one pallet;

Type 4. 180kg/drum, 4 drums in one pallet

Storage:

Please stored in the original sealed jar 5℃-32℃， the products can be preserved stable for 12 moths.

All our series products are very sensitive to the moisture; It will produce carbon dioxide and insoluble urea in the reaction with water. If exposure to the air or/and light, it will speed up color changes of products.

(But the practical function will bot be affected.)

Safety:

Dangerous nature, highly inflammable, stimulate to eyes, if inhaled can cause allergies. Frequent touch may result in skin dry out or craze. Steam of products can make the person fatigue and vertigo.

Specification

ITEM	INDEX
Assay of NCO	5.4±0.2%
Solvent	methylene chloride (MC)
Appearance：Clear yellow to brownish liquid
* In addition：The company could research and develop the new products according to the special demand of our clients．

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