Portavio Industrial Supply
US-based sales representation for industrial sealing products.
Who we are
We are a US-based sales representative for manufacturers of industrial sealing products. We work with a small number of vetted factories and represent them to American distributors, maintenance suppliers, and equipment makers.
What we represent
Standard and custom sealing consumables for general industrial, HVAC, and maintenance use:
O-rings
AS568 standard sizes, in NBR, EPDM, and silicone
Rubber gaskets
flat die-cut gaskets made to your drawing, plus gasket sheet for in-house die-cutting
Sealing strips
solid and sponge EPDM and silicone profiles, including self-adhesive weatherstrip
How it works
You send us one product you already buy — a size, a material, a drawing, or just a photo of the part. Whatever you have.
We return a written quote within 48 hours — unit price, minimum order, and lead time, from the factory that fits your product best.
Samples first. We ship a sample kit so you can check the part in your hands before any order.
The factory ships direct to you. You are the importer of record; shipping terms and the estimated import duty are stated on every quote. For China-origin general-industrial rubber seals the current all-in duty is approximately 40% of customs value (verified October 2026 — confirm with your customs broker).
Why work with us
- ✓One US-based contact who answers in your timezone, in plain English.
- ✓Quotes in 48 hours, in a standard written format — no chasing.
- ✓Honest landed-cost math: the duty line is on the quote, not discovered later.
- ✓Small enough to care about a $3,000 trial order; structured enough to handle what comes after it.
Request a quote
Prefer sending direct email?
You can email drawings, RFQ spreadsheets, or part photos directly without using this form: