What is WHITE POLYESTER NAUTICAL PUTTY + CAT and why choose it
WHITE POLYESTER NAUTICAL PUTTY + CAT by Kemipol is a super-light white polyester filler based on unsaturated polyester resins and mineral fillers, supplied together with its catalyst (CAT). It is designed for professional and industrial repair of nautical and bodywork surfaces where minimal added weight, easy application and a high-quality finish are required. The information below is based on publicly available data and may not be fully exhaustive or independently verified; always refer to the official Kemipol technical and safety data sheets for definitive values.
Main features
- Super-light formulation: very low specific weight to avoid unnecessary additional mass on repaired parts, ideal for boats and lightweight structures.
- Excellent spreadability: smooth, pasty consistency that spreads easily with a spatula or putty knife for precise filling.
- Easy sanding: formulated for quick, clean sanding after curing, helping to achieve a smooth, paint-ready surface.
- Very low porosity: minimizes pinholes and micro-defects, improving the appearance and durability of subsequent coatings.
- Multi-substrate adhesion: good adhesion on galvanized sheet, steel, aluminium, light alloys and fiberglass (GRP), according to available product information.
- Fast curing with catalyst: controlled gel time (on the order of a few minutes at 25 °C with the recommended catalyst dose) that allows efficient professional work.
- Professional and industrial use: intended for trained users in nautical, automotive and industrial repair environments.
Technical specifications
The following data are indicative, extracted from publicly available sources for WHITE POLYESTER NAUTICAL PUTTY + CAT by Kemipol and may not be fully verified. Always check the official Kemipol TDS/SDS for precise and up-to-date information.
- Chemical nature: unsaturated polyester resin with mineral fillers.
- Physical form: pasty, thixotropic putty.
- Colour: white.
- Odour: characteristic of polyester resin.
- Relative density (20 °C): approximately 0.85–0.86 g/mL (super-light filler).
- Mixing ratio (putty : catalyst): approximately 100 parts putty to 1–3 parts catalyst by weight.
- Gel time at 25 °C: about 4–6 minutes, depending on catalyst percentage and mass.
- Minimum application temperature: around 5 °C.
- Flash point: approximately 37 °C.
- Auto-ignition temperature: approximately 399 °C.
- Boiling point (atmospheric pressure): around 113 °C.
- VOC content: roughly 24 % by weight (about 220 g/L at 20 °C).
- Maximum layer thickness: about 4 mm per application; multiple layers can be applied if necessary, with appropriate curing between coats.
Applications and use cases
- Nautical repair and maintenance: ideal for filling and fairing on hulls, decks, superstructures and fiberglass components where low weight and a smooth finish are essential.
- Automotive and industrial bodywork: suitable for repairing dents, surface defects and imperfections on galvanized sheet, steel, aluminium and light alloys before priming and painting.
- Fiberglass (GRP) structures: compatible with fiberglass laminates for local repairs, profiling and fairing on composite parts.
- Lightweight structural filling: recommended wherever a conventional polyester filler could add excessive weight (for example, racing boats, performance craft or lightweight panels).
Basic instructions for use
The following instructions summarize typical professional use; they do not replace the official technical data sheet. Parameters such as mixing ratio and curing time are approximate and must be confirmed with Kemipol documentation.
- Surface preparation: ensure the substrate is clean, dry, sanded and free from dust, grease, salt and any contaminants that could affect adhesion.
- Dosage: remove the required amount of putty from the container and place it on a clean mixing board or non-absorbent surface.
- Mixing with catalyst: add approximately 1–3 % of the supplied catalyst (by weight) and mix thoroughly until a uniform colour and consistency are achieved. Avoid over-dosing, as excessive catalyst can cause staining or affect the paint system.
- Application: apply the mixed putty in layers up to about 4 mm thickness using a spatula or putty knife, pressing firmly to ensure good contact and avoid air entrapment.
- Curing: allow the product to cure. At around 25 °C, the gel time is typically 4–6 minutes; full sanding time will depend on film thickness and ambient conditions.
- Finishing: sand progressively with suitable abrasives until the desired level of smoothness is achieved, then proceed with primers and finishing coats according to the coating system used.
Storage recommendations
- Store the putty and catalyst in their original, tightly closed containers.
- Recommended storage temperature is typically around 18–25 °C, away from heat sources, sparks, open flame and direct sunlight.
- Keep in a dry, well-ventilated place, separate from food and incompatible materials.
- Under correct storage conditions, publicly available sources mention a typical shelf-life of about 12 months from production; always confirm this on the manufacturer’s label or technical documentation.
FAQ – WHITE POLYESTER NAUTICAL PUTTY + CAT
1. What type of product is WHITE POLYESTER NAUTICAL PUTTY + CAT?
It is a super-light, white, unsaturated polyester-based putty with mineral fillers, supplied with a catalyst, designed for professional nautical and bodywork surface repair.
2. On which substrates can it be applied?
According to available information, it adheres to galvanized sheet steel, standard steel, aluminium, light alloys and fiberglass (GRP), provided that surfaces are properly prepared.
3. What is the recommended mixing ratio with the catalyst?
Public data indicate a typical ratio of 100 parts putty to about 1–3 parts catalyst by weight. Check the Kemipol label or official technical data sheet for the exact recommended ratio.
4. How long is the working (gel) time?
At approximately 25 °C, the gel time is usually in the range of 4–6 minutes after mixing with the correct amount of catalyst. Working time can be shorter at higher temperatures or with higher catalyst percentages.
5. What is the maximum thickness per layer?
Indicative information suggests a maximum of around 4 mm per application. Several layers can be applied if necessary, allowing appropriate curing and sanding between coats.
6. Can it be used below 5 °C?
It is generally not recommended. The minimum application temperature mentioned in publicly available sources is around 5 °C. Below this temperature, curing and adhesion may be adversely affected.
7. Is sanding easy after curing?
Yes. One of the key characteristics of this product is its easy sanding once fully cured, which helps to achieve a smooth, low-porosity surface suitable for painting.
8. Is the information here fully verified?
No. The data provided are based on publicly available information and may not be exhaustive or fully up to date. For critical design, safety or regulatory decisions, always consult the official Kemipol technical data sheet (TDS) and safety data sheet (SDS).
9. Is the catalyst included with the product?
Yes. The designation "+ CAT" indicates that the polyester putty is supplied together with its corresponding catalyst, typically an MEKP-type hardener, according to market information for this Kemipol product.
10. Who should use this product?
WHITE POLYESTER NAUTICAL PUTTY + CAT is intended for professional and industrial users trained in the handling of polyester systems and their catalysts, and familiar with the relevant safety procedures.
Section 14 – Transport information
The following transport data are indicative and derived from publicly available information for Kemipol WHITE POLYESTER NAUTICAL PUTTY or similar polyester resin solutions. They may vary by packaging, formulation and local regulations. Always verify against the current Kemipol SDS and applicable transport regulations (ADR/RID, IMDG, IATA/ICAO).
Sea transport (IMDG)
- UN number: UN 1866
- Proper shipping name: RESIN SOLUTION
- Transport hazard class: 3 (flammable liquid)
- Packing group: III
- Marine pollutant: typically not classified as marine pollutant for this product, according to available data.
- EmS (emergency schedules): F-E (fire), S-E (spillage)
- Special provisions / limited quantities: limited quantity often 5 L for similar products; check the specific SDS for confirmation.
Air transport (IATA/ICAO)
- UN number: UN 1866
- Proper shipping name: RESIN SOLUTION
- Class: 3
- Packing group: III
- Environmental hazards: generally not classified as environmentally hazardous for air transport, based on available information.
Specific packaging instructions, quantity limits, special provisions and any national deviations must be checked in the latest versions of the IMDG Code, IATA DGR and relevant land-transport regulations, as well as in the official Kemipol SDS for WHITE POLYESTER NAUTICAL PUTTY + CAT.
Section 8 – Individual protection measures
The following personal protective equipment (PPE) recommendations are based on data available for WHITE POLYESTER NAUTICAL PUTTY + CAT and may not cover all possible situations. Risk assessment and PPE selection must always be adapted to the specific workplace and national regulations, using the official Kemipol SDS as the main reference.
Personal protective equipment for professional use
- Respiratory protection: when ventilation is insufficient or during operations that may generate vapours above exposure limits, use a suitable half-mask respirator with gas and vapour filter type A, in accordance with standards such as EN 405 or equivalent. Replace filters according to the manufacturer’s instructions or whenever odour is detected inside the mask.
- Hand protection: wear chemical-resistant protective gloves. Publicly available information for this product indicates gloves made of linear low-density polyethylene (LLDPE), with a penetration time greater than 480 minutes and a thickness around 0.062 mm, compliant with EN ISO 21420:2020 or equivalent standards.
- Eye and face protection: use safety goggles or a face shield when there is a risk of splashes during mixing and application of putty or catalyst (requirement to be confirmed in the official SDS).
- Skin and body protection: wear appropriate work clothing with long sleeves; in case of risk of splashing or prolonged contact, use chemical-resistant overalls or aprons as indicated in the SDS.
- Hygiene measures: avoid inhaling vapours and prevent contact with skin and eyes. Do not eat, drink or smoke while handling the product. Wash hands and exposed skin thoroughly after use and before breaks. Keep work clothes separate from other clothing and wash them regularly.
These PPE indications are general guidelines. For precise and legally compliant protective measures, consult the latest Kemipol safety data sheet and your company’s occupational risk prevention service.
*Contenido generado por IA
