Water-based coatings, often acrylic, are made up of various percentage chemical components dispersed in water. The binder is an acrylic or polyurethane resin emulsified or dispersed in water.
Since the solvent content is much lower, their impact on the environment and on human health is decidedly less harmful: the pollution in the air will be significantly less, and the toxicity for the operators will also be less.
The characteristics of water-based coatings
Hydroplus water-based coatings are designed to reduce the absorption of moisture and solar radiation. In this way they guarantee advantages in terms of resistance to the outside and reduction of solvent emissions.
The transparent and pigmented Hydroplus thixotropic topcoats have good elasticity, absence of blocking phenomena, good vertical hold, excellent distension and good resistance to tin sedimentation.
Durability has always been the first criterion for evaluating wood coatings for exteriors.
With the Hydroplus water-based products, the durability of the coated wooden windows has made a substantial step forward. The duration outside is higher.
Unlike solvent-based coatings, water-based wood coatings maintain a high degree of elasticity over time, which allows the paint film to follow the movements of the wood without being damaged. Many Hydroplus topcoats are thixotropic. This feature makes it possible to apply a high product thickness, maintaining an excellent level of relaxation and transparency.
In order to guarantee a good resistance to the outside, the clear products of the Hydroplus series have been formulated with an optimal dose of UV absorbers, which prevent the UV radiation from striking the wood directly and reduce the loss of color of the wood, in this way avoiding degradation.
The lacquered finishes contain very opaque pigments that are resistant to sunlight. HYDRO GOLD represents the cutting edge of the range of coatings for exteriors: international patent and guarantee of durability up to 18 years.
The Hydroplus coatings selected for ANTI-AGE SYSTEM are studied seeking the maximum protection of the wood and the paint film: these acrylic coatings guarantee 10 years of durability to the external doors and windows coated with the selected Hydroplus coating systems for this purpose.
In the coating of the furniture and the furnishing components, the aesthetic result is fundamental. Coating wood using Hydroplus water-based products makes it possible to obtain finishes that, due to their appearance and softness, are indistinguishable from those obtained with solvent-based products.
In fact they guarantee a level of mechanical and chemical resistance comparable to that of polyurethane coatings.
“Using water-based coating means choosing a product type that is more eco-compatible and reducing the emission of harmful substances”
Over the last few years an environmental awareness has grown, attentive to the health of operators and end customers. Furniture with an eco-compatible finish is increasingly sought after, and therefore with the lowest possible emission of solvents, both during coating and during the slow final drying phase.
Painters must use products that contain the minimum of harmful substances, in order to guarantee respect for the environment.
The advantages of using water-based coatings
One-pack water-based products, especially wood coatings for interiors, have no pot life problems such as traditional solvent-based polyurethane products.
They are simple and practical because they are ready to use, and the product can be recovered and reused, provided it is reintroduced into its original tin and carefully closed. Prolonged contact with air must be avoided.
When it is not possible to renounce to the maximum performance guaranteed by the addition of an isocyanic catalyst (kitchens, furnishings for bars and discos, table tops, etc.), the hardeners AH1545 or AH1550 can be used.
These products react chemically like the normal isocyanate-based resins of the second component of polyurethanes. However, thanks to their particular composition, they are stabilized and therefore miscible with water-based products, guaranteeing a pot life of up to 4 hours, after which the material is no longer usable.
Economic advantages:
- Overspray reduction up to 25%.
- Recovery of overspray in automatic systems.
- Unlimited pot life for single-component products.
Environmental advantages:
- 95% reduction in emissions compared to synthetic products, therefore low environmental impact
- Improvement of the work environment.
Performance advantages:
- Excellent chemical resistance.
- Reduced yellowing acrylic systems.
- Short drying times
- Longer outdoor life
- Hold of gloss
- Non-yellowing film
- No “skin” formation
- Film elasticity
- High thixotropy of the finishes
Practical advantages:
- Ready to use.
- Use of water for washing equipment.
- Simplicity of use.
- No problem of flammability and self-combustion, and therefore of storage.
Water-based coatings for wood, application methods and most common supports
Water-based coatings are normally applied by spray, roller or brush. Hydroplus products can be applied with normal spray coating systems (cup, airless, airmix, electrostatic) as long as the construction materials of the equipment are suitable for contact with water.
Available in different formulations and gloss levels, water-based coatings are mainly used for finishing wood, glass and iron, but they also give excellent results on plastic, PVC, etc.
Water-based wood coatings produced by Sayerlack
Clear fungicidal wood stain for exteriors – Hydroplus AM0570/00
Ideal for treating wood placed in exteriors and complies with the European directive BPR (EU) 528/2012, to be used to obtain exceptional protection against decay, wood staining and lignivorous insects. The product is ready to use and can be applied by manual spray, immersion, flow coating. Easily penetrating the wood guarantees adhesion between successive layers.
Can be overcoated with all wood stains for exteriors, primers and water-based topcoats for exteriors of the Hydroplus and Hydro Gold series.
Anti worm wood stain for exteriors – XE0197 Hydroplus
Medical-surgical supervision. Reg. N. 19153 of the Ministry of Health – it is an anti-worm wood stain for exteriors for treating lumber, beams and fixtures. It is equipped with active ingredients designed to penetrate the wood and carry out preventive and curative action against the attack of insects.
In the preventive treatment of fixtures, balconies, fences that have to withstand for a long time in very humid environments XE0197/00 can be applied in vacuum, by immersion or by brush. For drying, they will have to wait from 3 to 7 days depending on the case, after which you will have to apply the impregnating and possibly also the opaque finish.
Transparent wood stain for exteriors – AM0631/XX Hydroplus
Transparent wood stain for exteriors available in a wide range of colors, suitable for coating gazebos, fences, wooden houses, balconies and matchboarding.
It is applied with an impregnator but also with a sponge and brush; open-time brushability allows easy resumption of work even after a break. The special acrylic resins make the wood impregnation extremely effective, giving the wood a pleasant appearance and highlighting the grain.
AM0631/XX meets the requirements of the standard EN 71-3 – part 3 on heavy metal migration.
White wood stain for exteriors – AML3390/13 Hydroplus
White wood stain exteriors applicable through automatic impregnating machines whose high dry residue allows obtaining a product with high coverage and excellent filling.
Thanks to the excellent white point AML3390/13 gives the product good durability and excellent aesthetic result. Ideal for coating trusses and matchboards in softwood, the product is ready to use and can be applied in one or more coats to obtain a different coverage depending on the point of white to be obtained.
Topcoat for exteriors – AZL3497/00 Hydroplus
Topcoat for exteriors applicable to immersion on wooden artefacts exposed to the outside. The product makes it possible to coat complex, numerous items such as balcony slats easily, quickly and economically.
Topcoat for exteriors – AZ2330/86 Hydroplus
Topcoat for exteriors applicable by brush and spray on windows, balconies, matchboarding, trusses, cottages, fences, etc.
Its elasticity and durability make AZ2330/86 ideal for outdoor wood protection. The topcoat contains, in addition to UV absorbers and radical scavengers, also preservatives of the film against the attack of blueing and rotting fungi.
Super hydrophobic transparent water-based topcoat – H₂NO,
Topcoat destined to items exposed in exteriors – gazebos, wall coverings, outdoor furniture, fences – as well as protecting the wood, it leaves it unchanged in its natural appearance. AZV2317/00 Hydroplus penetrates deeply, infiltrating the wood fibers and forming a hydrophobic layer that repels water. The finish keeps the wood permeable to steam and allows it to exchange the contained humidity. This mechanism improves its durability over time and reduces the likelihood of attack by microorganisms.
AZV2317/00 is suitable for vertical or slightly inclined supports, to facilitate water flow. Applicable on any impregnating agent of the Hydroplus series by immersion, brush, impregnating machine, roller and airless low pressure airbrush.
Water-based oil for exteriors – AOV3793/00
Water-based oil for exteriors characterized by an excellent resistance to the outside, maintains the natural beauty of wood, easy to apply.
Ideal for coating outdoor wooden furniture, such as benches, tables, chairs and gazebos. Provides protection from UV rays while maintaining a natural appearance of the product.
It can be applied by brush, spray or rag in 2 or 3 coats, depending on the type of essence being treated and the effect you want to give. It is also possible to perform maintenance on the product simply by reapplying the product (1-2 coats maximum).
This product has a high content of raw materials of natural origin (about 25%), which therefore makes it environmentally friendly.
Transparent topcoat for exteriors – AZ8130/00 Hydroplus
Single-component transparent product that has exceptional durability in the exterior. It should be used in combination with a transparent Hydroplus base and an intermediate base, depending on the support or surface.
AZ8130/00 is the ideal solution to protect the support from any atmospheric condition and preserve its beauty.
Its strengths are transparency, durability against UV rays and water and immediate resistance to water intrusion.
Two-pack self sealer – AF0618/00 Hydroplus
Two-component primer with high chemical-physical performance, an innovative solution to the need to enhance and preserve the characteristics of naturalness, brightness and uniqueness of wood.
The exceptional resistance to polishing and scratching, resistance to stains, detergents and yellowing caused by light, allow it to be used for all interior furnishings.
The insulation of tannic woods is excellent, so much so that it does not require treatment of the raw support with a specific insulator. Excellent results can be obtained on pre-composite parts, which exclude color changes through good light protection, even on heat-treated products, increasingly present on the market, using a specific hardener.
One solution for each hardener: AH1564/00 for light woods and precomposed materials, AH1550/00 to make natural wood more revitalized, AH1503/00 for dark supports, in order to enhance transparency.
Certified results: the product, applied in two coats on beech, tested by the laboratories of the CATAS certification institute, passes the tests of resistance of surfaces to cold liquids EN 12720: 2013 reaching class B according to CEN/TS 16209.
Water-based topcoat 0 gloss natural wood effect – Hydroplus AT0601/00
Soft touch water-based topcoat suitable for varnishing wooden items for interiors, with good chemical resistance, excellent transparency and resistance to writing.
The product is characterized by a natural effect and is recommended if you intend to leave the appearance of the wood unaltered by touch and sight.
AT0601/00 can be used as one-pack without hardener or as a base-finish directly on the wood.
Self-sealer -AFL7931/00 Hydroplus
Finish with a very low single-component opacity with a waxy effect, particularly suitable in all cases where it is desired to obtain an uncoated coated natural effect.
By virtue of the particular formulation AFL7931/00 gives to the wood a pleasant softness and a sensation to the touch that does not suggest the presence of a treatment.
Transparent self sealer – Hydroplus AFL3675/00
AFL3675/00 is a 35 gloss transparent water-based primer, also available in 15, 20 and 60 gloss versions.
This product is ready to use, with good thixotropy and good transparency. It is also characterized by good leveling and pore marking, high softness and transparency, but also high thixotropy.
These properties make it a multi-purpose solution. It is also possible to obtain a good open pore effect on essences such as oak or ash, applying 2 coats, each of 100-120 g/m².
Wax effect water-based oil – AOV2343/00
Oil characterized by wax effect and long pot-life, ideal for interior furniture.
It can be applied with a spray gun, rag or brush. AOV2343/00 can be catalysed at 5% with AH1564/00 to improve its adhesion and chemical resistance, maintaining a high pot-life.
It is recommended to add a hardener for coating wooden floors or to renew surfaces already treated, to achieve higher performance.
AOV2343/00 can be pigmented with the dyes and/or pigments of the AC2110/XX, AC0600/XX, AC1810/XX, XA2006/XX and XA4034/XX series.
