Processed Linseed Oil

Alkali Refined Linseed Oil

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Alkali Refined Linseed Oil, commonly called "ARLO" for short, has been a classic ingredient in inks for centuries. Extracted from the seed of the flax plant, this oil is filtered and then "washed" with alkaline water to remove acid impurities. The resulting product is golden, rich & sweet-smelling oil that is composed primarily of linolenic acid. Alkali Refined Linseed Oil is demanded for furniture finish, oil paints, wood floors and others.

It is extensively used for the production of oil modified polyester resins (i.e. alkyd resins), stand oils, printing varnishes, maleate and urethane oils in the synthetic varnish-paints-and printing colour industry. It also finds application as a binder in pigment pastes. The presence of linolenic acid with its ability to polymerize readily in the presence of metallic driers such as cobalt or manganese is of great value to ink-makers.

When ARLO is combined with a metallic drier and exposed to oxygen in the air it will start to "oxidize", and a tough, flexible "skin" will start to form where the ARLO is exposed to the air. Since ARLO is prone to oxidation, care must be taken when handling ARLO, because items such as rags soaked with ARLO can auto-oxidize and catch on fire. ARLO readily dries and is considered a "drying oil". ARLO can be used for cutting tack and body, increasing flow of overly "short" inks, and to enhance the film integrity of inks that contain metallic driers that can react with ARLO. ARLO is 100% bio-based and renewable.

Specifications of Alkali refined Linseed oil

Moisture & insoluble impurities % by mass max	0.10
Color in gardener scale	4.00
Refractive index at 40°C	1.472 to 1.475
Relative density at 30°C	0.923 to 0.928
Saponification value	188 to 195
Iodine value (WIJS)	175
Acid value	1
Clarity	Clear

Blown Linseed Oil
Blown linseed oil is oxidized linseed oil. These oils are darker in colour and more acidic than stand oils. They are manufactured by blowing air through the oil resulting in the double bonds cross-linking with an oxygen bridge. This oxygen link makes blown linseed oil very reactive and dry considerably quicker than the corresponding stand oil. Unfortunately this reactivity makes the oils' viscosity less stable and therefore the viscosity range available is restricted - from approx. 0.8 poise to 100 poise (@ 25ºC).

Blown linseed oil is, in general, more viscous than the boiled oil and find use in flat paints, undercoats, primers and oil bound distempers. Because of its high surface activity, blown linseed oil, either on its own, or when mixed with other oils, may be added to paints and enamels to enhance their pigment wetting properties. Blown linseed oil is also used in the manufacture of electrical insulation varnishes and in the preparation of cheap high gloss varnishes where colour is unimportant. Blown linseed oil may be supplied with metal driers added on request. A processed linseed oil that has had hot air bubbled through it to produce a medium that dries faster than normal. Additionally driers, such as cobalt salts may also be added. Blown linseed oil is used in interior paints and enamels. Blown Linseed oil is film forming, fast drying and binding. There are various viscosity levels and grades available.

Specifications of Blown Linseed oil - 20 poise

Characteristics		Minimum	Maximum
Viscosity	30°C, Poises	15	25
Colour	Gardner	-	18
Moisture / volatiles	% by mass	0.00	0.1
Iodine value	WIJS	120	-
Acid value	mg koh/g.	-	17

Break Free Linseed Oil
Break Free Linseed Oil is linseed oil that that has had its break/gums removed. It is suitable for use in the manufacture of alkyd resins. Linseed Oil being a natural product, has some cellulosic material attached to the molecule of linseed in its raw form. To remove cellulosic material, heat treatment with acid catalyst is made to make Heat Break Linseed Oil. Normal Linseed Oil is with cellulosic material and HBLO is free of Cellulosic material. This is particularly useful in applications which demand the linseed oil in its pure form but without cellulose material and with low moisture content.

Specifications of Break Free Linseed Oil

Colour	Gardner	Max. 11
Moisture	%	Max. 0.1
Relative Density	g/cm3 @ 30o C	0.923 - 0.928
Refractive Index	@ 40o C	1.472 - 1.475
Saponification Value	-	188 - 195
Iodine Value	WIJS	Min. 170
Acid Value	mg KOH/g	Max. 4
Unsaponifiable Matter	%	Max. 1.5
Break	-	NIL

Gelled Linseed Oil
Gelled Linseed oil is a spongy mass with semi solid to solid consistency. It can be made tacky or non tacky to touch. GLO is used in wall coverings, shoe soles, etc. GLO is a convenient way to reduce the tack of a heavy ink. What makes GLO different is that it can be easily handled by just about anyone, including printers. With its short, gel body, GLO makes a wonderful "gel reducer" useful for reducing the tack and body of just about any sheetfed or web offset ink. Being an all-solids, naturally-based product, GLO is safe for the environment. GLO is more than 90% bio-based & renewable.  

Heat Bodied Linseed Oil
Modified linseed oils are produced by thermally polymerizing to produce "heat bodied" oils or by oxidation to create "blown" oils. These are produced under exacting conditions to create oils with increased viscosity and functionality.

Heat Bodied Linseed Oil is used for the production of performance additive in coating application. It is film forming, fast drying, binding. There are various viscosity levels and grades available. Heat bodied linseed oil is thermally bodied linseed oil, also called Stand oil.

Specifications of Heat bodied Linseed Oil (Stand oil 150 Poise)

Characteristics		Minimum	Maximum
Density	30°C	955	980
Iodine value	WIJS	100	-
Colour	Gardner	-	6
Viscosity, Poises	25°C	135	165
Moisture/volatiles	% by Mass	0.00	0.1
Acid value	mg KOH/g	0.00	12.0

Long Linseed Oil
Long Linseed oil is used in Printing inks of Headset quality, high Gloss enamels printing inks and silkscreen inks, primer undercoats, insulating Varnishes, first quality enamels, glossy varnishes, R.C. enamels & lacquers.

Pale boiled Linseed oil
Pale Boiled Linseed oil is similar to double boiled Linseed oil except that it is lighter in colour and has lesser odour. It is a simple and low-cost option for timber finishing. It is used as a timber sealer and protector for indoor furniture and cabinets, wooden tool handles and sporting equipment, thinner for artists oil paints, sealer and protective coating for concrete paths, floors, flagstones and interlocking stones. It is ideal for reviving furniture, woodwork, beams and flooring that have been previously finished with Linseed oil. It can easily give untreated pale woods (pine, spruce, birch, ash) an aged, amber coloured finish. Pale boiled Linseed oil can be used as a sealant before applying wax or lacquer and is often present in the preparation of oil-based varnishes, it has long been used by local craftsmen to coat handmade furniture, floors and woodwork.

This oil is not suitable for wet areas, as it has a tendency to go black when it comes into contact with moisture. It has added drying agents, creates a finish that is generally impervious to water, heat, scratches and most stains, helps aid brushing when added to oil based paints. Dries lighter in colour.

Specifications of Pale boiled Linseed oil

Colour	Gardner	Max. 11
Moisture	%	Max. 0.1
Relative Density	g/cm3 @ 30o C	0.925 - 0.935
Acid Value	mg KOH/g	Max. 8
Drying Time	Hours	Max. 18
Unsaponifiable Matter	%	Max. 2

Packaging Size:	220 Kgs
Packing Type:	HDPE Cans & Barrels
Usage/ Application:	Industrial
Minimum Order quantity:	220 Kgs

Reduced Linseed oil
Reduced linseed oil is made from boiled oils and are supplied diluted in white spirit. The chosen pigments are added (often calcium carbonate) thus making a cheap paint ideal for use in harsh conditions where more expensive paints are quickly spoilt (eg in hot, dusty climates). 

Stand Oil High Grade

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Stand Oil or Polymerised Linseed Oil has much higher viscosity and faster drying time than DBLO. It can be used in formulation paints , printing inks .The colour can be pale yellow to amber.