Procurement guide
Firestop Materials: A Procurement Comparison
Compare firestop pillows, putty, compound, coated boards and sealant by purchasing information, documentation and questions to resolve.
The short answer
Compare firestop materials by product format, confirmed specification, packaging and the documented application. Pillows, putty, compound, coated boards and sealant are different purchasing categories, not a ladder of fire performance. A suitable shortlist starts with the project requirement; a catalogue name alone does not establish suitability.
A product is one part of a system
A penetration firestop system combines the wall or floor construction, the services passing through it and the specified sealing materials. UL explains that the rating relates to that complete arrangement, rather than an individual component in isolation. Use this distinction when comparing offers: matching a material name or colour does not demonstrate that two proposals cover the same construction.
The table compares catalogue formats and purchasing questions. It does not recommend a material for a particular opening.
Compare the information each format needs
For coated boards, request sheet dimensions, edge details and the required system documents when comparing quotations.
| Format | What to specify | Question to resolve |
|---|---|---|
| Pillow | Individual units; model dimensions and carton counts | Which exact variant is supplied, and what documentation supports the proposed arrangement? |
| Flexible putty | Putty format and required net weight per pack | What are the material identity, net contents and documented companion components? |
| Inorganic compound | Bagged compound type and net contents | Which preparation and application documents apply to this exact formulation? |
| Coated board | Sheet dimensions, face area and carton packing | What are the core, coating and specified companion materials? |
| Sealant | Cartridge volume and separately identified product options | Does the documentation cover the proposed joint or penetration application? |
Put every supplier on the same purchasing brief
Keep pack arithmetic separate from material take-off. A carton count answers how items are supplied; the required project quantity needs its own agreed basis. Ask for the assumptions behind any estimate rather than treating a generic pieces-per-volume figure as an order quantity.
- Use one product line for each identifiable variant, with the full name, dimensions and requested quantity unit.
- Ask whether weight means net contents or packed weight, and separate individual units, cartons and pallets.
- Record the project document or drawing revision behind the request, so later replies can be compared consistently.
- List the technical documents needed for review and ask the supplier to identify anything unavailable or unresolved.
Resolve differences before approving an order
A changed brand, formulation or companion component is a technical review question. ASFP cautions against assuming that products from different manufacturers can be combined without relevant evidence. A procurement comparison should therefore record proposed substitutions explicitly and refer them to the responsible project reviewer.
Request a revised offer when the variant, packaging or scope changes. Keep the accepted schedule with its documents so receiving staff can identify the agreed items. The references explain general principles, not approval of this catalogue.
Buyer questions
Can putty replace a pillow or coated board?
Not on the basis of product category alone. Request a documented proposal for the actual construction and have any substitution reviewed through the project’s technical process.
Does a larger package mean better performance?
No. Package size is purchasing information. Performance claims need evidence for the identified product and its applicable arrangement.
Can I enquire before selecting a product?
Yes. Start with the opening information and project documents. State which items remain unknown so the enquiry can be clarified before a specification is agreed.
Sources & scope
The references below explain general firestop procurement and documentation concepts. They do not establish testing, certification or approval of HECHUANG products.
Match the material and its supporting documentation to the project specification.