Gellants Paints (Hectone – 40, 50, FD -1, FD-2 for Paints & Printing Inks)

 
General Chemical & physical Properties of Hectone Gellants - Paints

The Heclone (Organoclay) products are finely divided, light creamy / brown coloured powder. Heclone have very low chemical reactivity and are readily stored and handled without difficulty. They are non-hygroscopic and do not loose effectiveness with storage.

Chemical Properties:

Hectone Gellants are chemically neutral and their presence does not affect the pH of any organic liquid, The Hectare Gellants are resistant to the action of acids & alkalis in the working range of pH 4 to 10 and maintain gel stability over extended storage periods in this range. However, prolonged contact at lower or higher pH may cause decomposition of the Heclone Gellants with consequent reduction of gel strength.

Physical Properties :

Within the pH range 4 to 10, the Heclone Gellants are insoluble in all aqueous or organic liquids. A properly gelled Heclone compound, however, consists of particles in the micron range, so that a colloidal range is obtained in which no particles are discernible.

The equilibrium moisture content of the Heclone products are about 3 % by weight and this amount of water is necessary for optimum gelling properties. Removal of this water distracts seriously from gelling efficiency.

Once an Heclone compound has been gelled, it is stable in service up to moderately high temperatures short exposures to temperatures as high as 325° F has no effect.

The dry Heclone particle is resistant to wetting by water, because of the layer of long hydrocarbon chains around each individual unit.

Toxicological Properties :
Normal precautions should be taken to prevent breathing the finely divided powder, as would be taken for any other inert materials. Studies undertaken seem to indicate that a comparably low order of toxicity should be expected.
User Information Service :

Hecton/Gel -on gellants Incorporation Techniques - Paints

diecfone /Gel on gellants are supplied in the form of dry powders. In order to develop their useful properties, these gellants must be thoroughly dispersed, so as to get complete separation of the minute ultimate particles. This dispersion is readily obtained by applying a combination of the following two forms of energy.

  1. Mechanical shear action, such as grinding milling stirring.

  2. Chemical energy, by the use of a properly chosen polar additive, to initiate the separation of the minute ultimate particles.

The ease with which a good diecfone I Gel - on dispersion can be obtained is determined initially by the nature of Organic Liquid used. Such factors as the polarity of the liquid and its inherent viscosity have an important influence upon the ready wetting of the diecfone I Gel - on particle and consequently upon the efficiency of the grind. For example, these are considerable difference between ordinary mineral oil and boiled linseed oil, with respect to the total energy required in milling to form a folly gelled diecfone I Gel - on paste.

As a general rule, a diecfone I Gel - on gelling agent should be dispersed in the same manner as a relatively easygrinding pigment.

Technique:

To form the gel, weigh about 10% diecfone /Gel -on. Select appropriate non-polar vehicle (90%) and place it under stirrer or in milling machine. Stir gently. Add gellant to vehicle slowly and then apply high shear for a couple of minutes. To aid dispersion, add 30-50% (this weight based on the gellant weight) Methanol (95/5). On addition of polar dispersant, the mass thickens to a gel. Continue milling or stirring for a few minutes to obtained thick, creamy, smooth gel. This gel can be incorporated in the dispersed paint system.

(Note: - the sample supplied is suitable for non-polar or medium polar organic solvents.)

Type of Paints Particular Advantages of the Use of Hectone Amount of Hetone Gallant Recommended
1) Industrial Paints.
a) Air drying. Ease of Application.

2-10gm/ltrs.

b) Acrylic Coatings Improved mar resistance application of thick coats. up to 5 % on Resin
c) Bituminous Paints Increase Thixotropy anti-sag at any temperature, control of cracking & crazing.

up to 4% on Paints.

d) Clear Finishes Anti-settle, Uniformity of sheen.

up to 10% on normal flatting agent.

e) Epoxy Coatings Anti-sag, anti-float, application of thick coats. 20 gm / Itrs.
f) Finishes Colour Uniformity, anti-settle, ability to apply thick coats in single application 5-14 gm/ltrs.
g) Fire Retardant Paints Enhanced film adhesion on burning Reduction of flame spread. 4-8 gm / Itrs.
h) Nitro Cellulose Lacquers Colour Uniformity, anti-settle. 5-14 gm/ltrs.
i) Polyester Coatings Improved mar resistance and durability application of thick coats. up to 5 % on resin.
j) Road Line paints Increased wear resistance, anti-settle No effect on solvent release. 4-8 gm / Itrs.
k) Rubber Based Paints Anti sag control of cab webbing.

3-5 gm. / Itrs.

l) Stowing Controlled flow at elevated temperatures Reduction in 'flash off time. 2-10gm/ltrs.
m) Vinyl Wash Primers Anti-settle, increased consistency. up to 8 gm / Itrs
n) Vinyl Primers Control of thickening at low temperatures Ability to apply thick coat in single application. 6-9 gm / Itrs.
o) Zinc Rich Paints Anti-settle, control of gassing. 2 % on Resin
2) Decorative Paints.
a) Drip less paints. Control of synergizes on storage.

1 - 8 gm / Itrs.

b) Emulsion Paints Improved Emulsion Coagulation on film formation, improved scrub resistance. up to 5 % on solid resin.
c) Flats Anti-sag, anti settle, controlled penetration, controlled flatness and colour uniformity.

2-10 gm/Itrs.

d) Gloss Less phase separation on storage Controlled flow, enhanced colour development in tints.

2-10 gm/Itrs.

e) Multicolor Long term stability of the coarse emulsion. 0.5-5.0 % on enamel.
f) Odourless Paints Less phase separation on storage Controlled flow, enhanced colour development in tints. 2-8 gm / Itrs.
g) Primers Anti-settle, controlled penetration Ease of application no adverse effect on adhesion. 2-10gm/ltrs.
h) Semi Gloss Anti-sag, anti-settle, controlled penetration, controlled sheen and colour uniformity. 2-10 gm/Itrs.
i) Stipple Ability to stipple immediately after application, easy brushing. 10-30 gm/Itrs.
j) Under Coats (interiors & exteriors) Anti-settle, controlled penetration Ease of application, controlled flow. 2-10 gm/Itrs.
3) Marine Paints
a) Anti Fouling. Anti-settle under tropical storage.

0.5-1. gm/Kg.

b) General Anti-settle under tropical storage ease of application, anti-sag. 4-10 gm/Kg.
c) Vinyl Anti-Fouling Anti-settle, ability to apply in thick coats. 0.5-1.5 gm/Kg.
4) Miscellaneous
a) Colours in Oil Controlled of Oil separation on storage, desirable Thixotropy ease of mixing to base

up to 3% by weight.

b) Paints, Strippers (solvent type) Prevents running on vertical surfaces does not require meticulous removal prior to painting.

6-8% by weight.

c) Putties, Mastics and Wood Fillers Prevents oil separation, enhanced long term storage, controlled penetration.

1-3% by Wt. on Oil.

d) Tinting Pastes in Alkyds etc... Control of media separation on storage desirable Thixotropy, ease of mixing into base.

up to 3% by weight.

5) Plastics
a) Epoxy Thixotropic filler for putting compounds control

2-4% on resin.

b) Plastisols and Organosols Control offlow, sagging penetration

up to 2%on resin.

c) Plastigel Provides consistency, suitable for moulding or extension with retention of shape prior to and during curing

5 % on resin.

d) Polyester Laminating resins -----

2 - 4 % on resin.

e) Polyolefin's Non drip additive, especially with a flame retardant.

up to 4 % on resin.

f) Poly sulphide Stable Thixotropy.

2 % on resin.

   

 

N.B - These recommendations are bases on our research and the research of others also are correct to the best of our knowledge. However, our products are sold without engagement on our part and with the condition that purchasers shall make their own tests to determine the suitability of such products for their for their particular purposes as conditions of usage vary from plant to plant.