Interior or Exterior Steel Coatings

Interior and exterior are useful starting points when looking for a steel fireproof coating. They are not complete specifications. A purchasing enquiry should explain where the steel is located, what exposure it will face and what evidence the project requires before a product is selected.

The current SINGAL catalogue includes NB and NCB with indoor product titles, plus WB and WCB with outdoor titles. SGHY has an Indoor Use field.

These distinctions help organise a shortlist. They should remain attached to the exact model rather than becoming a promise about an entire coating family.

Describe the Actual Location

Write a short description of the steelwork and its position in the project. Include the substrate and whether the intended service is interior or exterior.

Add the project location and relevant drawing notes. This gives the supplier a defined request instead of an unexplained request for fireproof paint.

If the exposure is uncertain, say so. A structure shown inside a drawing may still need a more detailed review of its conditions.

Ask the project team to describe the intended service and installation sequence. Do not classify the exposure from a promotional image or a building name alone.

Separate what is known from what still needs a decision. The substrate, selected model and packaging requirement may already be fixed while system details remain open.

Mark those open points in the enquiry. That makes it easier to review the supplier's response without treating every suggestion as an approved specification.

Shortlist Interior Catalogue Options

NB is titled Indoor Water-Based Intumescent Coating. Its specifications also list Indoor Use, Steel as the substrate and Acrylic as the base. Its component field lists one component. These are concrete product details that a buyer can include when requesting the current technical file.

NCB is titled Indoor Solvent-Based Intumescent Coating. Its description refers to indoor load-bearing steel components, and its specifications list Steel, Acrylic and one component.

The indoor classification comes from the product's own wording. It should not be inferred merely from the letters in the model name.

SGHY is listed as an epoxy intumescent product with Indoor Use, Steel and two components in its specifications. That offers a separate catalogue route for an epoxy enquiry. The record does not justify placing SGHY into an exterior shortlist without additional product-specific confirmation.

Shortlist Exterior Catalogue Options

WB is titled Outdoor Water-Based Intumescent Coating. Its description refers to outdoor load-bearing steel components, while the specifications identify Steel as the substrate.

Its detailed table lists Single-component. Keep those exact records with the enquiry rather than generalising that every water-based coating is intended for outdoor use.

WCB is titled Outdoor Solvent-Based Intumescent Coating. Its description also refers to outdoor load-bearing steel components. The specification fields include Steel, Acrylic and one component. This supports discussing WCB as the catalogue's outdoor solvent-based option, subject to the project's technical review.

WCB also lists Specialized Topcoat.

That entry is a prompt to request the actual topcoat requirements, not permission to select any decorative finish. Ask the supplier to identify the proposed coating system and supporting documents together, including any preparation and inspection requirements relevant to the selection.

Request the Right Evidence

SINGAL's technical support page asks buyers to include the required standard, performance criteria and relevant drawing notes.

Supply those requirements with the intended use. Ask for current TDS, SDS and applicable test documentation for the exact model, rather than requesting a generic certificate without identifying the product.

The manufacturing page displays supplied management system certificate copies.

Those documents should not be treated as a substitute for model-specific fire performance evidence. Keep supplier qualification and product technical review as separate parts of the purchasing file, so each document answers the question it actually covers.

When a proposed model changes, revisit the associated documents. A similar title or identical package colour does not establish that the previous technical review applies. Record which product the supplier is quoting and which version of the technical file the project team has reviewed.

Resolve Quantity Assumptions

Do not use an interior or exterior label as a consumption figure.

A material estimate needs a model-specific basis and the conditions to which that basis applies. Request clarification of the listed consumption, required coating thickness and applicable performance documentation before turning an area into an order quantity.

WB needs particular care in the current catalogue. Its Coating Thickness and Recommended dry film thickness fields show different values.

Its packaging information gives a gross weight without a matching net Package entry. These questions should remain open until clarified; the missing information should not be supplied by calculation.

For NB, the Package field lists a 20 kg barrel and the minimum order field lists 100 kg.

Those details belong to NB's current record. Confirm the ordered packaging and quantity in the quotation rather than using that example as a rule for every coating on the site.

Plan the Commercial Review

Send the estimated quantity, destination, packaging needs and project timing. The manufacturing page asks buyers to confirm pack size, quantity and destination with each order. Use the same details in the technical and commercial discussions so the final response is based on one consistent request.

Keep required delivery timing separate from any unconfirmed supplier lead time. Explain when the material is needed and request a written response.

If you need a sample, ask about availability and terms. This guide does not establish a sample service or a delivery commitment for any model.

Once the technical file has been reviewed, follow its application method, surface preparation, drying conditions and inspection requirements. A catalogue shortlist is useful for opening the conversation. It should not become the application instruction or the evidence used to approve the completed work.

Continue With the Exact Model

Review the interior records for [NB](https://singalpaint.com/product/nb-interior-use-fire-proof-coating-water-based-intumescent-izetpdfjaxau/), [NCB](https://singalpaint.com/product/ncb-interior-usage-fireproof-fire-retardant-coating-gwzflwaxjktd/) and [SGHY](https://singalpaint.com/product/epoxy-based-intumenscent-fireproof-coatings-odntlnwvfbau/), or the exterior records for [WB](https://singalpaint.com/product/fireproof-industrial-intumescent-coating-for-steel-structure-qfptbhodmxgw/) and [WCB](https://singalpaint.com/product/outdoor-acrylic-solvent-based-fire-proof-intumescent-coating-mojamegjhvaw/).

Use the [technical support checklist](https://singalpaint.com/technical-support/) to organise the missing details. Then [request a quote](https://singalpaint.com/request-a-quote/) with the model, exposure, substrate and project requirements clearly identified.