Custom Fenestration Material Solutions: Glazing, Sealing, Thermal, Specialty & Protection

No. H-O Products is a die-cut converter, not an extruder. H-O buys roll, sheet, and bun stock from the material makers and converts it: die-cutting, kiss-cutting on liner, slitting, laminating, and kitting, in Winsted, Connecticut, under an ISO 9001:2015 certified quality management system.

The parts on this hub are therefore flat or laminated geometries cut from stock, such as setting blocks, glazing tape, gasket strip, weep baffles, mullion plugs, thermal-break strips, channel liners, and protective film, rather than extruded bulb seals, co-extruded vinyl weatherstrip, or molded corner keys.

If your bill of materials mixes both, send the whole list anyway; engineering will tell you plainly which lines H-O converts and which need an extruder or a molder.

Usually, yes. Send the system manual page, the incumbent technical data sheet, an old drawing, or a sample part, and engineering cross-references the callout against the families H-O converts. The comparison works through the properties that matter rather than the part number: dense versus cellular class, durometer or compression-deflection band, cell structure, chemistry, adhesive and liner, thickness class, and the standard the callout leans on.

What comes back is a material-family direction with the vendor TDS attached, plus an honest note on anything that does not map cleanly. Where the callout sits inside a tested or listed assembly, engineering flags the re-qualification exposure before quoting.

Treat that as a question to verify rather than a claim to accept. H-O converts glazing tape from manufacturers who publish AAMA 810.1 Type I test data on their technical data sheets, and H-O supplies that data with the quote. Listing status on the AAMA Verified Components List, however, belongs to the material manufacturer and to a specific product designation, and listings change.

H-O does not assert that a converted part carries a listing. Ask H-O for the current status of the exact grade you are considering and confirm it against the published list before you write it into a submittal. Converting listed stock into a die-cut part does not by itself transfer or extend a listing.

No. H-O supplies converted dry components and their documentation, not liquid-applied products. Structural silicone, weatherseal sealant, glazing compound, and gunnable butyl come from the sealant manufacturers, and the structural joint design belongs to the system engineer working within ASTM C1401 practice.

Where H-O does contribute is compatibility posture: send the sealant package with the request and engineering reviews the accessory pairings against the vendor technical data sheets and flags which pairings need a compatibility letter from the sealant maker under the ASTM C1087 framework.

Poly-Seal butyl tape, a preformed tape sealant rather than a gunnable one, is converted by H-O and is commonly evaluated against ASTM C1281.

Typical prototype lead time is 5-10 business days after drawing review, depending on material availability, tooling, and inspection requirements. Standard production runs typically ship about two weeks after drawing approval, including kiss-cut-on-liner, corner-matched, and laminated configurations, and expedited service is available. Every fenestration part on this hub is made to order to your drawing, including samples; nothing here is a stocked catalog part.

Minimum production quantities apply and vary by material and geometry, since a small die-cut block and a wide laminated strip consume stock very differently. Send the drawing, the annual quantity, and your first-article date, and the quote carries a specific commitment.

Start from the unit you build, not the material you think you need. Residential work starts with Residential Window and Door Components, then Window and Door Systems for the full interface map of a unit. Commercial aluminum window, storefront, and curtain wall work starts with Curtain Wall Glazing and Perimeter, then Curtain Wall Mullion and Thermal Break for the hidden cavity parts.

Door work starts with Commercial Doors and Entrances. Code-driven work splits between Fire-Rated Glazing and Opening Protectives and Impact, Blast and Acoustic Glazing. Two pages cut across every system: Fenestration Tapes and Gaskets, and Surface Protection and Shipping.

The parts between the components: the glazing tape or bedding layer between glass and sash, the setting and side blocks that carry and locate the lite, the compression gaskets at sash, frame, and pressure plate, the weep baffles that keep a drained cavity draining, the balance-chimney and hardware blocks inside a vinyl or wood frame, the mullion plugs, end dams, and air baffles inside a curtain wall extrusion, the thermal-break layers, the channel liners in a rated opening, the acoustic layers in a performance stack, and the film, pads, and dunnage that get the finished unit to site unmarked.

No, and it is worth being precise about why. NAFS, the AAMA/WDMA/CSA 101/I.S.2/A440 standard, rates a finished fenestration product tested as an assembly, and NFRC 100 rates the thermal transmittance of a whole product through simulation and certification. Both belong to the product manufacturer working with an accredited laboratory or simulator, and the same is true of ASTM E283, E330, E331, and E547 results, which describe one tested specimen.

H-O converts materials commonly evaluated against component-level methods such as ASTM C864, C509, C1115, D1056, and D2240, and supplies the vendor data behind them. Those materials support your performance target; they do not confer a rating.

Yes, as a supplier of components into someone else's listing, and that distinction governs everything. A fire-rated opening protective is qualified as a complete assembly under UL 9, UL 10C, or NFPA 257 and installed under NFPA 80; an impact-rated assembly is qualified under ASTM E1886 and E1996; a blast or acoustic stack is qualified by its own test file. In each case the listing names materials, dimensions, and construction, and the listing holder owns it.

H-O converts the specified material to your drawing, holds the geometry, and lot-codes the parts so they trace to the data sheet the test file references. A substitution inside a listed assembly is an engineering event.

It is the difference between a part that holds a dimension and a part that closes a gap. Dense, non-cellular elastomers fall under ASTM C864 in the general case and ASTM C1115 for dense silicone specifically, and are specified by durometer per ASTM D2240. Use them where the part carries load or sets a dimension: setting blocks, side blocks, shims, splice pads, bearing pads.

Cellular elastomers fall under ASTM C509 for preformed gaskets, are classified by ASTM D1056 for firmness and cell type, and are specified by compression-deflection rather than durometer. Use them where the part seals across a joint that moves. Substituting one class for the other is the most common fenestration material error.

Six groups do most of the work. Glazing and bedding tapes, including crosslinked polyethylene glazing tape, Poly-Seal butyl tape, and the acrylic foam tape family, bed lites and bond components. Dense elastomers, principally solid silicone, EPDM, and neoprene, carry dead load. Cellular foams, including silicone sponge, EPDM and neoprene foam, PVC foam, vinyl nitrile, and PORON microcellular urethane, close moving joints.

Reticulated polyurethane keeps cavities draining. Aerogel, SOLIMIDE polyimide foam, ManniGlas glass-fiber paper, and Nomex aramid paper handle heat, flame, and sound. Protective film, cork and foam pads, and UHMW-PE wear strip protect the finish.

Often, and the process is the same one used for a system-manual callout. Send whatever you have: a part number, a technical data sheet, a drawing, or a sample. Engineering works backward from the properties the part needs: class, thickness, density or durometer, cell structure, adhesive and liner, temperature range, and any standard the original leaned on. The candidate family comes back with the vendor TDS, and samples follow for fit and function.

Two cautions: where the incumbent sits inside a listed assembly a swap re-opens qualification, and where the property set cannot be matched, engineering says so rather than offering the nearest thing.

Adhesion level, dwell time, and exposure govern, and those are decisions made at spec. Protective films are selected by adhesion class against the finish they will sit on, and the vendor technical data sheet publishes a removal window; a film left on beyond that window, or exposed to sunlight and heat it was not selected for, is where residue and ghosting come from. Anodized, powder-coat, painted, and mill finishes behave differently.

Tell H-O the finish, the expected dwell, and whether the unit sits outdoors, then test on your own finish before releasing a program.

Yes. Everything is made to order, so prototypes are cut from the same stock and to the same drawing as production parts, which keeps first articles representative. Minimum production quantities apply and vary by material and part. For ongoing programs, H-O supports blanket orders with scheduled releases, kanban arrangements, and kitting that packages a unit's converted parts together with tabbed liners and labeling so they arrive line-ready.

Material and lot-code traceability runs under an ISO 9001:2015 certified quality management system. Send the annual quantity with the drawing and the quote carries the specific minimum.

Send whatever you have; a partial package still gets a useful answer. The most useful single item is a drawing, in DXF, STEP, or PDF, or a shop drawing with the extrusion section.

After that: which unit and which interface the part serves, the current material and its technical data sheet, the thickness or gauge and the tolerance that matters, whether the part needs adhesive and on which face, the liner and delivery format you want, the temperature and exposure it will see, any standard or listing it sits inside, the prototype and annual quantities, the finish it touches if it is a protection part, and the documentation package you need.

Yes. Nail fin corner gaskets (also called nailing fin corner seals or corner pads) are self-adhered, die-cut pads that close the joint where the window's nailing fin meets the sill and jamb flashing at the corners of the rough opening. H-O converts them from closed-cell foam, EPDM, or butyl-faced foam with pressure-sensitive adhesive, kiss-cut on liner in the orientation your line installs them. The full treatment, including material selection and what to send for a quote, is on the Residential Window & Door Components page.