Roll materials · Wholesale · OEM sourcing
Source aluminum foil fiberglass fabric for flexible radiant-heat shields, insulation facings and industrial cover conversion. Specify the reflective layer, woven glass backing and bond system together—then evaluate drape, cut-edge stability and handling on the actual sample.
Discuss wholesale roll supply, custom dimensions and OEM packing with DERFLEX. Real aluminum foil and metallized-film constructions are identified separately; final grade availability, performance and production terms are confirmed during quotation.
For fabricators, insulation converters, industrial distributors and OEM purchasing teams.
Material definition
Aluminum foil fiberglass fabric is a composite textile made by bonding a real aluminum foil layer to woven fiberglass cloth. The reflective face helps manage radiant heat; the glass textile reinforces the laminate and supports flexible fabrication.
The broader term aluminized fiberglass fabric can also describe a glass textile laminated with an aluminum-metallized polymer film. These constructions may look similar, but the film, adhesive, finish and glass weave give them different handling and temperature limits.
For a useful supplier comparison, request a written layer stack rather than accepting “silver fiberglass cloth” as a complete specification. DERFLEX’s wider reflective laminated material range covers other backings and insulation-facing applications; this page focuses on glass-backed materials for industrial heat-protection sourcing.
Construction comes first
Both can provide a reflective surface. Specify what is actually bonded to the fiberglass before comparing price, flexibility or thermal performance.
Construction A / Foil laminate
A distinct metal foil is laminated to the textile. Specify the foil thickness independently from the total composite thickness. Repeated sharp folds can damage the foil even when the backing remains intact.
Construction B / Metallized-film laminate
The metal is deposited onto a polymer carrier, such as PET, before lamination to glass cloth. Film chemistry and bonding must be reviewed for the actual material temperature and service cycle.
Illustrative layer diagrams; layer thicknesses are not to scale. A reverse treatment or additional layer changes the construction and must appear in the approved specification.
| Comparison point | Real foil on fiberglass | Metallized film on fiberglass |
|---|---|---|
| Reflective layer | A separate aluminum foil sheet. | Deposited aluminum supported by a polymer film. |
| What to declare | Foil thickness, glass cloth, adhesive and reverse finish. | Carrier-film type and thickness, metallization, glass cloth and adhesive. |
| Flexibility review | Foil creasing, crack development, bond retention and bend radius. | Film fatigue, abrasion, shrinkage, bond retention and bend radius. |
| Thermal limit | Use the full-laminate rating; the adhesive or finish can limit service. | Use the full-laminate rating; the polymer film and adhesive can limit service. |
| Price comparison | Compare foil gauge, glass construction, usable width and conversion yield. | Compare film chemistry, metallization, glass construction and conversion yield. |
For a broader film-based material program, review DERFLEX aluminized PET film and reflective fabric materials. A packaging or sunshade laminate should not be assumed suitable for an industrial heat shield.
Specification for quotation
DERFLEX has not assigned a universal stock specification to this page. Use the fields below to request a defined grade with tolerances, sample evidence and commercial terms.
| Specification | What to request | How to approve it |
|---|---|---|
| Base cloth | Fiberglass type, weave and substrate weight. | Material declaration and a backing-side sample; avoid substituting polyester or woven plastic. |
| Reflective construction | Real aluminum foil or metallized polymer film; single or double reflective face if feasible. | Identify every layer in writing. Confirm availability with DERFLEX for the required structure. |
| Foil / film thickness | Separate reflective-layer gauge in µm from total laminate thickness in mm. | Specify the measurement method and agreed tolerance for each relevant value. |
| Total weight | Finished laminate mass in g/m², including backing, bond and finish. | Confirm with DERFLEX; compare the same complete construction across quotations. |
| Bond and reverse finish | Bond chemistry or performance specification; any anti-fray or protective finish. | Review flexibility and bond retention after the agreed thermal and flexing exposure. |
| Temperature and reflection | Continuous laminate temperature, peak duration and thermal test conditions. | Use exact-grade evidence. No universal temperature or reflectivity percentage is claimed here. |
| Usable width / roll length | Width, edge allowance, length, splice policy, core and maximum roll size. | Available according to project requirements and confirmed production feasibility. |
| Handling requirements | Drape, minimum working bend radius, edge stability and fiber-release acceptance criteria. | Trial the intended cut, sewn, bound or clamped part using the production sample. |
| Documentation / packing | Grade identification, agreed inspection records, SDS if applicable, roll labels and export packing. | Confirm the required documents, test scope and packing details in the quotation. |
Thermal selection
Heat reflective fiberglass cloth can help reduce radiant heat transfer when its reflective face is oriented toward the source across a suitable air space. The complete shield still needs a thermal design.
State the source, distance, orientation, airflow and exposure duration. Surface dust, abrasion and damaged reflective areas can change performance in service.
The furnace, exhaust or equipment temperature is not automatically the temperature reaching the laminate. Measure or evaluate the reflective face and bond-line duty in the intended assembly.
Direct contact, flame and molten splatter require their own assessment. A reflective appearance or bare-glass rating does not establish suitability for these hazards.
Flexibility & low fiber release
Glass weave, yarn construction, foil or film gauge, bond loading and reverse finish all influence flexibility. A heavier laminate may feel stiffer; a shiny face alone says little about drape or durability.
Lamination can cover one face of the glass textile, but cut edges, the reverse side and abrasion zones may still release fibers. Low shedding is an acceptance target to verify, rather than a zero-fiber claim.
Proposed buyer acceptance sequence
Trial the smallest curve, corner and access flap. Observe bridging, spring-back, wrinkles and whether the reflective face stays in the required position.
Use the intended cutter, needle, thread and binding. Compare fraying, loose yarns and fiber release from unfinished and finished edges.
Agree the bend radius, number of cycles, cleaning method and inspection criteria before testing. Inspect for foil cracks, film damage, peeling and released fibers.
Repeat handling checks after a project-defined thermal exposure. Record conditions and results; this suggested sequence is not a claim of DERFLEX certification or a standardized fiber-emission test.
If frequent removal and reverse-side abrasion dominate the application, compare a silicone-coated fiberglass option or discuss a protective reverse finish. Confirm the temperature and flexibility of the resulting full laminate.
Application selection matrix
Use these scenarios to start a material discussion. They are selection directions; final suitability depends on the chosen grade and complete assembly.
| Buyer application | Structure to evaluate | What matters most |
|---|---|---|
| Flexible radiant shield | Declared foil/glass or film/glass laminate with an appropriate bond system. | Air-space design, radiant load, actual layer temperature, face abrasion and mounting. |
| Removable thermal cover | Reflective shell where useful, supported by a separately specified insulation and hot-face system. | Drape, access frequency, edge finishing, thread, closures and temperature at each layer. |
| Pipe or duct insulation facing | Foil/glass facing matched to the insulation system and environment. | Seam continuity, moisture or vapor requirement, tape compatibility and bond durability. |
| Frequently folded OEM part | Compare thinner foil and suitable film-based samples without assuming either is always more flexible. | Working bend radius, flex fatigue, surface integrity and fiber-release criteria. |
| Hot-work barrier | A project-qualified heat-resistant textile or multilayer system after hazard review. | Sparks, molten material, orientation and the required finished-product test; reflection alone is insufficient. |
For finished-product layer design, review equipment heat-protection covers. If your main product is a reusable valve, flange or pipe jacket, the insulation-jacket fabric guide adds conversion and maintenance considerations.
Material reference / 03
A metallized film can be bright and flexible while having a different thermal envelope from a real-foil laminate. Ask the supplier to identify the carrier and bond system. For both routes, test the complete converted part under the relevant operating and handling conditions.
Fabrication & purchasing details
Trial bound or folded edges and local reinforcement around clamps, fasteners and openings. A stronger backing does not prevent a thin reflective face from being damaged by an exposed corner.
Cutting and sewing may be practical for suitable grades. Foil and glass do not behave like a weldable PVC tarp: heat sealing depends on an identified compatible layer and a tested process.
Ask whether a price is per linear meter, square meter or roll. Match usable width, trim allowance, roll length, splice policy and pattern yield before comparing apparent unit prices.
Review core diameter, winding tension, protective wrapping, edge protection and pallet arrangement. Tight folds, crushing and scratching can damage a reflective laminate before conversion begins.
Manufacturer & OEM supply discussion
DERFLEX’s published programs cover reflective laminates and coated fiberglass. Bring these material requirements into one sourcing discussion, with feasibility and evidence confirmed for the specific aluminum/glass construction.
01 / APPLICATION BRIEF
Identify heat type, layer position, movement, environment and target test requirements. Include a drawing or an existing sample when available.
02 / SAMPLE REVIEW
Request a declared construction and enough material for cutting, joining and handling trials. Confirm sample availability, cost and preparation time.
03 / SPECIFICATION FREEZE
Agree layer identity, dimensions, tolerances, surface condition, bond and handling criteria. Keep an approved reference sample for repeat orders.
04 / BULK QUOTATION
Request wholesale roll pricing, MOQ, lead time, test documentation and export packing. Discuss slit widths, OEM roll labels and private-label cartons.
Sample-to-bulk controls should include grade and batch identification, usable roll dimensions, reflective-face inspection and the agreed verification records. Extra testing and OEM conversion requirements need to be included in the commercial offer.
Buyer questions
Direct answers for roll-material procurement and flexible heat-protection development.
It combines a real aluminum foil sheet, a bonding layer and woven fiberglass cloth. A reverse finish or extra layer may be added if specified. Request the complete layer declaration because the broader term aluminized fiberglass can also refer to metallized-film constructions.
Not always. Aluminized fiberglass is a broader description that may use real foil or an aluminum-metallized polymer film. Identify the metal layer, carrier film if present, adhesive and glass backing before comparing grades.
There is no universal rating for every laminate. The adhesive, film carrier, finish or converted-product components may limit service before the glass backing does. Request the exact-grade continuous rating, peak duration and test conditions, using the actual temperature reaching the material.
Suitable constructions can be flexible, but softness depends on glass weave, foil or film gauge, bond loading and finishing. Trial the sample over the intended bend radius and repeat the handling cycle to inspect for cracking, peeling and loss of drape.
Covering a face can reduce exposed fibers at that surface, but cut edges, the reverse side and worn areas can still release fibers. Specify edge finishing and fiber-release acceptance criteria, then check the converted sample before and after relevant handling and heat aging.
No. A reflective face primarily addresses radiant heat under suitable orientation and air-space conditions. Conductive heat, hot air and required heat-loss control may require a separate insulation layer and a complete system design.
Some grades can be cut and sewn with a suitable needle, thread and edge design. Heat sealing requires a declared compatible layer and an approved process; real foil and fiberglass are not inherently thermoplastic sealing layers. Trial the actual construction before bulk conversion.
Send the application, foil or film preference, heat exposure, target weight and thickness, roll dimensions, conversion method, sample and bulk quantities, packing and destination. DERFLEX confirms grade feasibility, sample terms, MOQ, price and lead time against that specification.
Samples · Bulk rolls · OEM
Share what the finished part must do. If the material structure is undecided, describe the exposure and handling requirements so foil and film routes can be reviewed separately.
Prefer email? Prepare the brief here and send it to info@derflex.com. This page prepares your inquiry locally; the email or DERFLEX quote page is the sending step.