Interior vs exterior fireproof coatings for steel structures
Interior and exterior are useful starting points when looking for a steel fireproof coating. Use them to frame a complete enquiry that explains 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. Keep each distinction attached to the exact model and its supporting documents.
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 so the supplier receives a defined request for the fireproof coating.
When exposure needs confirmation, describe the uncertainty. A structure shown inside a drawing may need a more detailed review of its conditions.
Ask the project team to describe the intended service and installation sequence. Classify the exposure from project conditions, not from a promotional image or a building name alone.
Separate fixed requirements from system details that need technical review. The substrate, selected model and packaging requirement may already be fixed; describe the requested system details in the quotation.
List those items in the enquiry so the supplier can distinguish the requested specification from suggestions that still require review.
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. Confirm it from the product record rather than inferring it 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. Use the model-specific documents before considering SGHY for any exterior shortlist.
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 that exact record with the enquiry and confirm outdoor suitability for the selected model rather than generalising from the water-based label.
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 prompts a request for the actual topcoat requirements. 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.
Keep those documents as supplier qualification records and review product fire performance separately, so each document answers the question it actually covers.
When a proposed model changes, revisit the associated documents. Confirm applicability by recording the product quoted and the version of the technical file reviewed by the project team; a similar title or package colour is not enough.
Resolve Quantity Assumptions
Use model-specific technical data rather than 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. Confirm these fields before calculating and keep net coating quantity separate from package gross weight.
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, and use the example only for the NB record.
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 supplier lead time. Explain when the material is needed and request a written response.
If you need a sample, ask the supplier to confirm availability, terms and delivery timing for the selected model.
Once the technical file has been reviewed, use its application method, surface preparation, drying conditions and inspection requirements as the working instructions. A catalogue shortlist opens the conversation; the reviewed documents support approval of the completed work.
Continue With the Exact Model
Review the interior records for NB, NCB and SGHY, or the exterior records for WB and WCB.
Use the technical support checklist to organise the required project details. Then request a quote with the model, exposure, substrate and project requirements clearly identified.