Aliphatic Polyurethane Overcoatable Topcoat S43-31 is a polyurethane coating used as a topcoat. Suitable for large vehicles, railway carriages, locomotive heads, yachts, ships, docks, bridges, machine tools, instruments, grain machinery and other high-grade products, steel structures or aluminium alloy surfaces as a high-performance topcoat. A two-component polyurethane overcoatable topcoat composed of aliphatic isocyanate and hydroxyl acrylic resin as binders, titanium dioxide, coloured pigments, additives and solvents. Parameters on this page: volume solids 52 ± 3% (after mixing), dry film thickness 40 µm, theoretical spreading rate 92 g/m².
Parameter source: KAILIN original technical data sheet (TDS) for Aliphatic Polyurethane Overcoatable Topcoat S43-31; spreading rate and other values are converted from TDS parameters and provided for product selection reference only.
The above content is compiled from the manufacturer's datasheet and this site's parameter tables. For selection, coating systems and lead times, pleaseContact Usfor confirmation.
This page carries the full TDS for this product, translated from the manufacturer's original document. No file download is needed; for an original-language copy, send an enquiry.
| Volume Solids | 52 ± 3% (after mixing) |
|---|---|
| Dry Film Thickness | 40µm |
| Theoretical Spreading Rate | 92 g/m² |
| VOC | — |
| Density / Specific Gravity | — |
| Number of Components | Two-component |
| Flash Point | 25°C |
| Mixing Ratio | Component A : Component B = 8:1 (by weight) |
| Colour / Appearance | Various colours, gloss or matte |
For more Q&A on selection, application, acceptance and defect diagnosis, seeFAQsection.
A two-component polyurethane overcoatable topcoat composed of aliphatic isocyanate and hydroxyl acrylic resin as binders, titanium dioxide, coloured pigments, additives
and solvents.
Suitable for large vehicles, railway carriages, locomotive heads, yachts, ships, docks, bridges, machine tools,
instruments, grain machinery and other high-grade products, steel structures or aluminium alloy surfaces as a high-performance topcoat.
| Appearance | Various colours, gloss or matte |
|---|
| Volume Solids | 52 ± 3% (determined in accordance with GB/T9272 eqv ISO 3233:1998) (after mixing) |
|---|---|
| Mixing ratio | Component A : Component B = 8:1 (by weight) |
| Dry Film Thickness | 40µm |
| Wet Film Thickness | 77µm |
| Theoretical quantity | 92g/m² |
| Flash Point | 25°C |
| Drying time (25 °C) | Touch dry ≤ 2 h; hard dry ≤ 24 h; fully cured 7 d |
| Induction time (after mixing) (25 °C) | 30min |
| Pot life (after mixing) (25 °C) | 6h |
| Recoating interval (25 °C) | Minimum 16 h; maximum unlimited |
| Recommended number of coats | Apply two coats, 80 µm dry film thickness. |
842 Epoxy Micaceous Iron Oxide Anticorrosive Paint or H53-31 iron red epoxy anticorrosive paint, H53-32 epoxy zinc phosphate anticorrosive
paint, polyurethane primer, etc.
Remove oil, dust and all other contaminants from the previous coat; the film must be free from acid, alkali and moisture condensation.
| Application method | Airless spray: Thinner 110, thinning 0-5% (by paint weight), nozzle tip 0.2-0.4 mm, spray pressure 15-20 MPa (approx. 150-200 kg/cm²). Air spray: Thinner 110, thinning 0-10% (by paint weight), nozzle tip 2.0-2.5 mm, air pressure 0.3-0.4 MPa (approx. 3-4 kg/cm²) |
|---|---|
| Roller/brush | Thinner 110, thinning 0-3% (by paint weight) |
| Cleaning solvent | 110 thinner |
| Safety measures | See the Safety Data Sheet (MSDS) of Shanghai Kailin Paint Factory. |
| Packaging | Component A: 20 L drum, 20 kg; Component B: 4 L drum, 2.5 kg |
| Shelf Life | Component A 12 months; Component B 6 months |
Before use, pour Component B into Component A, or mix in the required ratio; mix only the amount needed,
stir thoroughly before use, and use up within 6 h after mixing.
During paint mixing and application, contact with water, acid, alkali, alcohol, etc. is strictly forbidden. Component B reacts readily with water,
alcohol, etc.; after mixing, the container of the remaining Component B must be tightly closed to avoid loss from moisture-induced gelling.
To ensure full crosslinking and complete curing of Components A and B, the mixed paint can be induced at 25 °C for 30 min
before application. At air temperatures below 25 °C, the induction time may be appropriately extended.
The paint is not limited by the maximum overcoating interval; after complete curing, the second topcoat can be applied without sanding.
During application, drying and curing, the relative humidity must not exceed 75%, otherwise the film will blister severely.
At air temperatures below 0 °C, curing stops and outdoor application is not advisable.
| Notes | To use this product correctly, read the Application Guide in this data sheet carefully. |
|---|
The above information and data for this product are accumulated from our tests and practical experience
accumulated, and may serve as an application guide. For application carried out under conditions unknown to us, we
We guarantee only the quality of the paint itself and accept no responsibility for other matters. We
and reserve the right to make modifications as the product is improved.
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.
Packaging specifications and batch lead times are subject to actual availability. PleaseContact Uscontact us for project-based calculation.
