Closed-cell polyethylene foam, engineered for your industry.
Alcot Plastics manufactures backer rods, foam spline, OEM components, custom profiles, and recreational foam for construction contractors, OEM partners, and wholesale distribution partners.
Which best describes you?
Four markets, one extrusion processConstruction
Backer rods, spline, and pipe insulation for contractors, glazing, and civil infrastructure projects.
OEM
Recurring foam components built into your product line, from mattress cores to racing safety padding.
Custom & specialty
Short-run and bespoke profiles for unique applications, from bottle stoppers to protective packaging.
Recreation & retail
Private-label pool noodles and recreational foam for distributors, retailers, and aquatic programs.
Start with the job you need the foam to do.
Instead of making buyers decode a product list first, this homepage routes them by market: construction, OEM production, custom manufacturing, or wholesale recreation and retail.
Foam solutions for contractors, glazing, and civil construction
Alcot Plastics manufactures closed-cell and soft polyethylene foam backer rods, foam screening spline, and pipe insulation for construction, infrastructure, and glazing applications.
Common needs
- Support proper sealant joint depth and profile.
- Minimize three-sided adhesion in sealant applications.
- Resist water and air infiltration with closed-cell foam.
- Serve expansion joints, windows, doors, precast concrete, bridges, highways, and related construction applications.
Recurring foam components built into your product line
Alcot supports OEM partners that need repeatable polyethylene foam components produced to fit a product line, assembly, packaging system, or safety application.
Common needs
- Source recurring foam components for product lines and assemblies.
- Build mattress components, roll-bar padding, packaging inserts, or specialty foam parts.
- Maintain consistent dimensions, density, and fit across repeat production runs.
- Work with a North American foam extrusion partner on ongoing supply requirements.
Custom foam profiles, engineered to your spec
Alcot produces short-run and bespoke polyethylene foam profiles for unique applications that standard catalog foam does not fit, from bottle stoppers to protective packaging.
Common needs
- Match specialty profiles, dimensions, densities, or shapes.
- Create bottle stoppers, protective packaging, short-run profiles, and unique foam parts.
- Run short, specialty, or custom batches more efficiently.
- Review drawings, samples, or application details before production.
Private-label recreational foam, made to your spec
Alcot manufactures pool noodles and recreational polyethylene foam products for distributors, retailers, and aquatic program suppliers, with custom colors, sizes, densities, and private-label branding available for wholesale order volumes.
Common needs
- Order custom colors, sizes, densities, and private-label recreational foam.
- Support wholesale, distributor, retail, and aquatic program volumes.
- Coordinate packaging, case-pack configuration, palletizing, and freight.
- Request current minimums, lead times, and wholesale pricing.
40+ years of foam extrusion innovation
Since opening in 1983, Alcot Plastics has built its reputation on a simple idea: innovation does not have to be complicated. Founder Jan Alac developed a smarter, faster extrusion process from the ground up, and that same approach drives the company today, with his son John now helping lead it. From its early roots in Milton, Ontario to its current Guelph facility, Alcot has grown alongside its customers while keeping the same hands-on, flexible way of working.
Why manufacturers, OEMs, contractors, and distributors choose Alcot
Efficient extrusion
A fast-starting extrusion process lets Alcot run both large production orders and short, custom batches without the downtime or waste of conventional setups.
Continuous development
Ongoing product development keeps Alcot's foam offering current for a widening range of customer applications, from infrastructure to aquatics.
Built around your spec
Alcot's team specializes in producing customized items based on individual project, OEM, or order requirements — not just standard catalog sizes.
Browse by product
Find Alcot’s core foam product lines and the markets they support.
Backer rods
Closed-cell and soft foam backer rods for joint filling, sealing, insulation, and related construction applications.
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Spline
Flexible foam spline for screen installation in window and door frame applications.
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Polyethylene foam
Custom extruded polyethylene foam profiles and OEM components for packaging, specialty, and recurring production needs.
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Pool noodles
Lightweight recreational foam for wholesale pool, aquatic program, and retail distribution needs.
View productCommon questions about Alcot Plastics
What does Alcot Plastics manufacture?
Alcot Plastics manufactures closed-cell extruded polyethylene foam products, including backer rods, foam spline, OEM components, custom profiles, and recreational foam, for construction, OEM, custom, and wholesale retail customers.
Can Alcot supply OEM foam components?
Yes. Alcot supports OEM partners with recurring polyethylene foam components used in product lines, assemblies, safety padding, packaging, and other specialty applications.
Where is Alcot Plastics located?
Alcot Plastics is based in Guelph, Ontario, Canada, where it operates its manufacturing facility.
How long has Alcot Plastics been in business?
Alcot Plastics was founded in 1983 by Jan Alac and remains a family-run manufacturer, with his son John now helping lead the company.
Does Alcot Plastics offer custom foam manufacturing?
Yes. Alcot's extrusion process allows the company to run small or custom orders efficiently alongside standard production.
Need product information or help with a custom application?
Tell us what you are trying to make, seal, protect, package, or distribute. Alcot can help point you toward the right product path or review a custom foam requirement.
31 Malcolm Rd., Guelph, ON N1K 1A7 · +1 519.767.2899