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Acid catalysed lacquers come of age

Acid catalysed lacquers come of age 14 PIGMENT AND RESIN TECHNOLOGY August 1991 Aci d catalysed lacquers have earned a reputation as being the workhouse of the woodfinishing range. With their excellent durability, acid catalysed finishes are commonly used for applications such as office, kitchen and contract furniture where a high quality finish with good resistance is required. Over the past year, these finishes have been given a fresh new image thanks to important technological developments. Acid catalysed lacquers now feature valuable ne w benefits whic h make the m an even better choice for many woodfinishing applications. Hydrocarbon free Aci d catalysed lacquers which are hydrocarbon free have recently been developed an d are no w commerically available. These systems are inherently less toxic because of the absence of aromatic hydrocarbons. Reduced atmospheric pollution and a more comfortable workin g environment are tw o major benefits of hydro­ carbon free systems. Low formaldehyde Another area of technological advancement is the development of acid catalysed systems wit h a signifi­ cantly reduced formaldehyde content. Ne w formulations wit h reduced formaldehyde enable users to remai n well Severe use withi n the Health and Safety Executive's acceptable Acid catalysed lacquers whic h meet th e requirement s of environmental limit of tw o parts per million. BS6250 Severe Use are now also available. These The benefit of the reduced formaldehyde formualtion systems are designed for use on both contract and also assists users to meet th e more stringent regulations domestic furnitur e wher e th e highest degree of chemical experienced in some EEC countries , as wel l as offerin g a and mechanical resistance is required. safer and more comfortable working environment for Apart fro m the exceptional durability offered by these those wh o handle acid catalysed lacquers or th e treated systems, an important feature is ease of use and woodwork. extremely rapid drying times. For example, th e first acid Low formaldehyde acid catalysed systems also avoid catalysed coat can be sanded in just 30 minutes in potential build-ups which can occur, for example, in normal air drying conditions. flat-packed furniture. Although not harmful in small quantities, formaldehyde build-ups do create an un­ Macpherson Woodfinishes pleasant odour. Macpherson Woodfinishes is a leading name in the woodfinishing industry. The company commits sub­ Non-yellowin g stantial resources to the development of woodfinishing The trend in over-coating whit e and pastel colours wit h products, and as a result, Macphersons in-house R&D clear lacquers in certain bedroom and kitchen fitted department has formulated a range of acid catalysed furnitur e has made colour change a particular problem. lacquers. Low formaldehyde versions are available, as Even white and pastel coloured acid catalysed wel l as those whic h feautre non-yellowing and severe lacquers change colour in time, causing matching-up use properties. Hydrocarbon free lacquers are also problems whe n customers come to add new furniture available. after a period of time. Macpherson two-pack acid catalysed systems are The problem of colour instability caused by sunligh t has specially formulated to provide excellent toughness and largely been overcome by the introduction of an acid durability to BS6250 Severe Use specification combined catalysed lacquer which contains a UV inhibitor to wit h a 60 minute drying time. The high build finish reduce darkening of the wood substrate. makes the lacquer especially suitable for contract Non-yellowing acid catalysed lacquers are available in furnishing and shopfitting applications. A long pot life of clear and pigmented versions. The clear lacquer may be 36 hours is a major benefit not normally associated wit h used to overcoat white or pastel shades and all light severe use finishes. woods. Used as a topcoat, they can help protect wood Details: Macpherson Woodfinishes, Rookwood Way, fro m the uneven and unsightly fading which occurs whe n surfaces are exposed to sunlight. Haverhill, Suffolk. CB9 8PQ. Tel: 044 0 703611 . http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Pigment & Resin Technology Emerald Publishing

Acid catalysed lacquers come of age

Pigment & Resin Technology , Volume 20 (8): 1 – Aug 1, 1991
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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0369-9420
DOI
10.1108/eb042862
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Abstract

14 PIGMENT AND RESIN TECHNOLOGY August 1991 Aci d catalysed lacquers have earned a reputation as being the workhouse of the woodfinishing range. With their excellent durability, acid catalysed finishes are commonly used for applications such as office, kitchen and contract furniture where a high quality finish with good resistance is required. Over the past year, these finishes have been given a fresh new image thanks to important technological developments. Acid catalysed lacquers now feature valuable ne w benefits whic h make the m an even better choice for many woodfinishing applications. Hydrocarbon free Aci d catalysed lacquers which are hydrocarbon free have recently been developed an d are no w commerically available. These systems are inherently less toxic because of the absence of aromatic hydrocarbons. Reduced atmospheric pollution and a more comfortable workin g environment are tw o major benefits of hydro­ carbon free systems. Low formaldehyde Another area of technological advancement is the development of acid catalysed systems wit h a signifi­ cantly reduced formaldehyde content. Ne w formulations wit h reduced formaldehyde enable users to remai n well Severe use withi n the Health and Safety Executive's acceptable Acid catalysed lacquers whic h meet th e requirement s of environmental limit of tw o parts per million. BS6250 Severe Use are now also available. These The benefit of the reduced formaldehyde formualtion systems are designed for use on both contract and also assists users to meet th e more stringent regulations domestic furnitur e wher e th e highest degree of chemical experienced in some EEC countries , as wel l as offerin g a and mechanical resistance is required. safer and more comfortable working environment for Apart fro m the exceptional durability offered by these those wh o handle acid catalysed lacquers or th e treated systems, an important feature is ease of use and woodwork. extremely rapid drying times. For example, th e first acid Low formaldehyde acid catalysed systems also avoid catalysed coat can be sanded in just 30 minutes in potential build-ups which can occur, for example, in normal air drying conditions. flat-packed furniture. Although not harmful in small quantities, formaldehyde build-ups do create an un­ Macpherson Woodfinishes pleasant odour. Macpherson Woodfinishes is a leading name in the woodfinishing industry. The company commits sub­ Non-yellowin g stantial resources to the development of woodfinishing The trend in over-coating whit e and pastel colours wit h products, and as a result, Macphersons in-house R&D clear lacquers in certain bedroom and kitchen fitted department has formulated a range of acid catalysed furnitur e has made colour change a particular problem. lacquers. Low formaldehyde versions are available, as Even white and pastel coloured acid catalysed wel l as those whic h feautre non-yellowing and severe lacquers change colour in time, causing matching-up use properties. Hydrocarbon free lacquers are also problems whe n customers come to add new furniture available. after a period of time. Macpherson two-pack acid catalysed systems are The problem of colour instability caused by sunligh t has specially formulated to provide excellent toughness and largely been overcome by the introduction of an acid durability to BS6250 Severe Use specification combined catalysed lacquer which contains a UV inhibitor to wit h a 60 minute drying time. The high build finish reduce darkening of the wood substrate. makes the lacquer especially suitable for contract Non-yellowing acid catalysed lacquers are available in furnishing and shopfitting applications. A long pot life of clear and pigmented versions. The clear lacquer may be 36 hours is a major benefit not normally associated wit h used to overcoat white or pastel shades and all light severe use finishes. woods. Used as a topcoat, they can help protect wood Details: Macpherson Woodfinishes, Rookwood Way, fro m the uneven and unsightly fading which occurs whe n surfaces are exposed to sunlight. Haverhill, Suffolk. CB9 8PQ. Tel: 044 0 703611 .

Journal

Pigment & Resin Technology – Emerald Publishing

Published: Aug 1, 1991

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