Alberdingk Boley ALBERDINGK Waterborne Dispersions, ALBODUR Polyols and Castor Oil

Selection and quotation of Alberdingk Boley raw materials: ALBERDINGK polyurethane, acrylic, hybrid and UV-curable dispersions, ALBODUR polyols, castor and linseed oils.

ALBERDINGK U and CUR Polyurethane Dispersions

Waterborne polyurethane dispersions bind coatings for wood, plastics and leather and adhesives, with abrasion, UV, block and hydrolysis resistance. U 4101 is an aliphatic polyether polyurethane without free isocyanate groups for tacky adhesives. CUR 991 uses renewable castor oil raw materials.

U 4101: solids content 39–41%
U 4101: 100% modulus 5 MPa
CUR 991: 39% renewable content on solids
U 2101: solids content 59.5–61.5%

ALBERDINGK AC Acrylic Dispersions

Pure acrylics give adhesion and chemical, scratch and UV resistance. Multi-phase grades combine surface hardness and block resistance with low co-solvent demand, self-crosslinking grades add chemical resistance. AC 2523 is a fine core-shell copolymer without plasticizers and protective colloids.

AC 2523: self-crosslinking, multi-phase
AC 2523: solids content 47–49%
AC 2508: MFFT 80 °C
AC 2008: solids content 58–60%

ALBERDINGK AS and SC Styrene Acrylics

Styrene acrylics wet pigments and fillers well, resist saponification and water and give gloss and adhesion. They serve silicate paints, preservative-free paints and construction materials. AS 2684 is free of plasticizers, APEO and protective colloids, for wood, metal and plastic coatings.

AS 2684: MFFT 31 °C
AS 2684: solids content 41–43%
AS 2040: solids content 56–58%
SC 4400: solids content 49–51%

ALBERDINGK APU and UC Acrylic-Polyurethane Hybrids

Solvent-free hybrids combine the scratch resistance and adhesion of acrylics with the elasticity and UV resistance of polyurethanes. APU 10610 is an acrylic ester copolymer with aliphatic polyurethane for wood and plastics. UC 84 uses aliphatic polycarbonate polyurethane and polyacrylate.

APU 10610: solids content 33–35%
APU 10610: suitable for 2-pack use
UC 84: MFFT 42 °C
UC 84: wood, plastics and metal

ALBERDINGK LUX UV-Curable Dispersions

UV-curable dispersion systems crosslink within seconds and give abrasion, block, scratch and chemical resistance. LUX 399 is an anionic dispersion of aliphatic polyurethane and acrylic ester copolymer for ABS and PC plastics and furniture. LUX 250 uses an aliphatic polyester polyurethane.

LUX 399: solids content 44–46%
LUX 399: pH 6.5–7.5
LUX 250: solids content 39–41%
LUX 220: solids content 34–36%

ALBERDINGK H Hydrosols for Priming

Hydrosols have long served as primers on mineral substrates: ultra-fine particles and wetting stabilise the substrate. H 595 is a low viscous, finely dispersed acrylate-styrene dispersion without APEO for solvent-free deep priming of plaster, masonry and gypsum. The range also includes H 735.

H 595: solids content 29–31%
H 595: Brookfield viscosity 20–35 mPas
H 735: solids content 34–36%
H 735: MFFT 5 °C

ALBODUR Castor Oil Based Polyols

ALBODUR are 100% solid castor oil polyols for 2-pack polyurethane coatings, floorings, elastomers and adhesives, from elastic to very hard. Homogeneous curing allows high film builds; the polyols are hydrophobic and chemically resistant. They crosslink with aromatic and aliphatic polyisocyanates.

ALBODUR 941: hydroxyl value 300–330 mg KOH/g
ALBODUR 941: Shore D hardness 75
ALBODUR 901: elongation 180, Shore A 75
ALBODUR 956: decorative floorings

ALBERDINGK Castor and Linseed Oils, HCO

The castor oil triglyceride consists of approx. 90% ricinoleic acid with a hydroxyl group and a double bond. FSG grade serves polyols for polyurethane systems, plasticizers and printing inks. Hydrogenated castor oil HCO is used in lithium and calcium greases, refined linseed oil in alkyd resins.

Castor Oil FSG: iodine value 82–89
Castor Oil FSG: Hoeppler viscosity 9.5–11 dPas
HCO Flakes 82: melting point 85–87 °C
Refined linseed oil: iodine value 175–210

Choosing a Dispersion by Film Properties

ALBERDINGK dispersions are compared by solids content, pH, Brookfield viscosity and minimum film forming temperature, and by self-crosslinking and multi-phase design.

The lower the MFFT, the less coalescent a formulation needs: AC 2523 has 0 °C, the hard AC 2508 has 80 °C. Multi-phase acrylics give hardness and block resistance with low co-solvent demand, self-crosslinking grades give chemical resistance.

The substrate follows the application: for plastics the manufacturer lists ABS, PC and polyamides, for mineral substrates hydrosols and styrene acrylics.

Polyurethane, Hybrid or UV Curing

Polyurethane dispersions are chosen for coatings with high demands on abrasion, hydrolysis resistance and elasticity; CUR 991 with 39% renewable content forms a film at 40 °C and crosslinks with Bayhydur 3100 polyisocyanate as a second component.

APU and UC hybrids combine the adhesion and scratch resistance of acrylics with the elasticity of polyurethanes. LUX UV-curable dispersions crosslink within seconds and suit furniture and plastic coatings with high chemical resistance; the grade for a line is checked against its TDS.

ALBODUR Polyols in Floor Coatings

A floor system is built in layers: a primer of 0.2–0.3 mm wets the pores and binds dust, followed by a levelling layer and a self-levelling coating of 1–3 mm. The primer should be harder than the top coats.

For damp or oily concrete the manufacturer recommends ALBODUR 912 with Suprasec 9584 at 1:1, for fresh concrete a self-crosslinking acrylic, otherwise the layer saponifies. Hardness is set by the grade, from elastic 901 to hard 941; for membranes and waterproofing less isocyanate is used.

ALBODUR 1054 contains more than 70% renewable resources and crosslinks with aliphatic HDI.

Moisture and Temperature with Castor Oil Polyols

Water reacts with isocyanate faster than castor oil polyols do, so in thick films it is bound with molecular sieves or oxazolidines. Systems with aliphatic hardeners are even more sensitive to moisture than aromatic ones.

Castor oil is the only OH functional natural oil usable in polyurethane systems; its viscosity strongly depends on temperature, so the oil is delivered at 30–40 °C. For polyurethane systems Albodry Castor Oil PU Quality has a water content of max. 0.05%.

Alberdingk Boley and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Alberdingk Boley and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.