HEMPEL's Polyurethane Topcoat 55190

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55190

Product Characteristics

Description

Hempel's Polyurethane Topcoat 55190 is a two-component, high-solids, semi-gloss acrylic polyurethane coating cured with an aliphatic isocyanate, with good gloss and colour retention.

Recommended use

Used as a topcoat for the protection of structural steel in moderately to highly corrosive atmospheric environments where coating performance and colour retention are required.

Service temperature

• Under dry conditions: maximum service temperature 120 °C [248 °F].

VOC content (after mixing the multi-component paint)

Subject to specific legislation; see the explanatory notes on the Hempel website hempel.com or your local Hempel website. VOC values may vary with colour; refer to Section 9 of the Safety Data Sheet. This product complies with the VOC requirements of national mandatory or recommended standards; consult the company representative for details.

Handle with care. Before and during use, observe the safety labels on the packaging and paint containers and comply with all local and national safety regulations. Consult the Hempel Safety Data Sheet and Product Data Sheet for the product at all times.

For professional use only.

Product Data

Curing agent 97050

Other colours are available through the company's tinting system

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Aluminium Grey 19000

Gloss

Refer to the Hempel Guide for Aluminium-containing Coatings.

55190

Surface Preparation

Cleanliness

• The surface must be dry and clean before application.

New construction

• In accordance with Hempel's specifications.

Maintenance and repair

• The surface must be dry and clean before application.

For further details, refer to the separate Hempel document Surface Preparation Guide.

Application

Mixing Ratio

Base 55199 : Hardener 97050 (10 : 1 by volume)

Stir thoroughly before use.

Pot Life

Recommended method

Nozzle pressure: 14 MPa

Airless Spray

Tip size: 0.43–0.48 mm

If brush or roller application is used, multiple coats are required to achieve the specified dry film thickness. HEMPEL brush/roller additive 99140 may be used to improve flow and levelling. Consult Hempel for advice. Spray parameters are indicative and may be adjusted to site conditions. Pressure figures apply to material at 20 °C. (*For other application methods, consult the company representative.)

Film thickness

Depending on the end use and service area, the product may be specified at film thicknesses other than those indicated. This will alter the spreading rate, drying and curing times and recoat interval. To achieve optimum performance, avoid excessive film thickness.

Application conditions

• The surface to be coated must be clean and dry, and its temperature must be at least 3 °C [5 °F] above the dew point to avoid condensation.

• During application and curing, the surface temperature must be above -10 °C [14 °F].

• Provide adequate ventilation during application and drying.

Relative humidity

• During application, the relative humidity must be below 85%.

• During curing, the relative humidity must be below 85%.

Notes

• Two coats of topcoat may be required to achieve full hiding.

55190

Drying and recoat

Product compatibility

• Previous coat: according to Hempel's specifications.

• Subsequent coat: none.

Drying Time

Measured at 60 µm dry film thickness under standard conditions; see Hempel's explanatory notes.

Recoat

Hempel's specifications supersede all guidance shown in the recoat table.

For products of the same generic chemical composition, recoat times are for reference only.

For further information, refer to Hempel's specifications.

Drying conditions

- To achieve the stated drying times, adequate ventilation during application, drying and curing is essential.

• Avoid condensation on the freshly applied coating.

Recoat notes

• The surface must be clean before recoating.

• For appearance reasons, an additional topcoat may be applied.

• Two coats of topcoat may be required to achieve full hiding.

If the maximum overcoating interval between the epoxy and the topcoat is exceeded, apply a thin coat of epoxy.

Others

• Hempel's specifications supersede any recommendations in the Product Data Sheet.

Storage

Shelf Life

When stored in unopened original containers, shelf life is counted from the date of production. Thereafter, the product quality must be re-inspected. Storage at high temperatures may shorten the shelf life. For advice, consult Hempel.

Storage conditions

• Store under dry conditions. Protect from moisture ingress.

- Store the product in accordance with the Safety Data Sheet, label and local regulations. Keep containers in a dry, cool, well-ventilated place away from heat and sources of ignition. Keep containers tightly closed. Handle with care.

Carbon footprint

Carbon footprint is based on a 1 µm dry film thickness formed over a surface area of 1 m².

The scope includes raw materials, transport to the Hempel factory, the Hempel production process, and any volatile organic compounds (VOC) emitted during and after use of the product.

55190

Supplementary documents

For further information, refer to the Hempel website (https://www.hempel.com/service-and-support/technical-guidelines) or your local Hempel website:

• Notes to the Product Data Sheet.

• Application Methods
• General application guide

datasheet, which is also available for download at www.hempel.com.

This Product Data Sheet (“PDS”) relates to the product supplied (the “Product”), and its content is updated from time to time. Accordingly, the buyer/applicator should refer to the PDS supplied with the relevant batch of product (rather than an earlier version). In addition to the PDS, the buyer/applicator may receive some or all of the specifications, declarations and/or guides shown below, which are also available for download from the “Products” page of the Hempel website (www.hempel.com) (hereinafter the “Supplementary Documents”):

If the information in the PDS and the supplementary documents is inconsistent, the information shall take precedence in the order listed above. In this case, contact the Hempel representative for clarification. In addition, the buyer/applicator must give full consideration to the relevant safety information accompanying each product. Hempel accepts no liability for any defects arising from application not carried out fully in accordance with the recommendations and requirements of the relevant PDS and supplementary documents. The information and terms in this disclaimer apply to this PDS, the supplementary documents and any other relevant documents provided by Hempel for this product. In addition, unless otherwise expressly agreed in writing, supply of the product and all technical support are subject to Hempel's General Conditions of Sale, Delivery and Service.

Information is subject to the manufacturer's latest version; the manufacturer's latest TDS prevails.
The technical parameters on this page are taken from the product's original manufacturer technical datasheet, the copyright of which belongs to the manufacturer. If a rights holder considers the presentation inappropriate, contact us for verification and handling.