GUIDES

Sealing strip guides for buyers

Short, practical answers: which profile fits your gap, which material to choose, how to measure a seal and what to send for a quote.

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Door & window seals 8

D, P, E and I Foam Seal Profiles: Which One Fits Your Gap?How to choose between D, P, E and I self-adhesive foam weatherstrip: gap size per profile, popular sizes 9×6 to 21×15 mm and how much compression to allow.Read ↗EPDM Foam vs PU Foam Weatherstrip: Which Should You Choose?EPDM foam vs PU foam weatherstrip compared: outdoor life, softness, temperature range, price and typical applications for doors and windows.Read ↗How to Replace Weather Stripping on a Door (3 Types)Replace door weather stripping step by step: remove the old strip and glue, fit self-adhesive foam, kerf-in seals and door bottom seals, and avoid strips that fall off.Read ↗Types of Door Weather Stripping (with a Section Chart)The 8 common types of door weather stripping – foam tape, D/P/E/I profiles, V-strip, kerf-in, door sweeps, pile, thresholds – where each goes and which gap it seals.Read ↗How to Weatherproof Windows: Strips, Caulk or Film?Find where a window leaks air or water, then pick the fix: foam or rubber weatherstrip for the opening sash, caulk for fixed joints, pile for sliders.Read ↗How to Install Window Weather StrippingStep-by-step: clean, measure, cut and press a self-adhesive foam weatherstrip into a window frame – plus where to place it on casement and sliding windows.Read ↗What Is a Door Kerf? Identify Your Door SealA kerf is the narrow slot in a door frame or door bottom that holds a weatherstrip. How to check if you have one and how to measure the seal that fits.Read ↗Foam Tape for Sealing: EPDM vs PVC vs PE vs PU FoamWhich foam tape seals best? Compare EPDM, PVC, PE and PU foam tapes for doors, windows, cabinets and enclosures – compression, outdoor life and typical uses.Read ↗

Automotive weatherstrips 4

Car Weather Stripping Replacement: Universal vs OEM SealsReplacing car weather stripping: universal pinch-weld seals vs OEM-shaped seals, what to measure (flange, bulb, length) and which EPDM profile to order.Read ↗What Is a Pinch Weld Seal? Sizes, Bulb & Grip RangeA pinch weld seal is a U-channel with a steel clip carrier and a sponge bulb that pushes onto a vehicle's door or trunk flange. How to pick grip range and bulb position.Read ↗How to Fix Car Door Weather StrippingCar door seal loose, torn or leaking? Find the cause, re-seat or re-glue it, or replace it with a universal or OEM-shaped weatherstrip.Read ↗Car Trunk Seal: When to Replace It and How to ChooseWater in the boot or a musty smell? How to check a trunk (boot) seal, measure the flange and choose a push-on EPDM seal with the right bulb.Read ↗

Refrigerated truck door seals 2

Refrigerated Truck Door Seals: Identify & Order the Right SectionIdentify a refrigerated truck or container door seal by base width and height, understand 3-sided vs 4-sided gaskets, and what to send for a quotation.Read ↗How to Replace a Trailer or Container Door SealStep-by-step replacement of trailer, reefer and container rear door seals: measuring the old section, removing it, fitting the new gasket and checking the seal.Read ↗

Edge trim & U-channel 2

How to Select Edge Trim Grip RangeEdge trim grip range explained: how to measure flange thickness, pick a range with margin, and choose between plain U, metal-carrier and bulb edge trim.Read ↗How to Install U-Channel Rubber Edge TrimPick the right grip range, start at a corner, push the trim on with a rubber mallet and finish the joint – for sheet metal, panels, machine guards and vehicle openings.Read ↗

Brush & wool pile seals 2

Brush Seal Pile Height Selection GuideHow to size wool pile and brush seals: base width for the groove, pile height for the gap, when to choose a centre fin, and how to measure an old seal.Read ↗How to Replace Sliding Window Pile WeatherstripMeasure the pile base width and pile height, slide out the old wool pile seal and fit the new one – for aluminium and uPVC sliding windows and doors.Read ↗

Door bottom seals 4

Garage Door Bottom Seal Types and How to MeasureGarage door bottom seal types – T-end, bead-end, bulb, thresholds and roll-up door seals – and how to measure the retainer slot, door width and floor gap before ordering.Read ↗How to Replace Weather Stripping on a Door BottomDoor bottom seals explained: door sweep, slot-in bottom strip and self-adhesive silicone sweep – how to remove the old one and fit the new one.Read ↗Door Draft Stopper vs Door Sweep: Which One?Compare door draft stoppers, door sweeps, double-foam door bottom gaskets and threshold seals – what each seals, how it fits and which suits renters, homes and trade.Read ↗How to Replace the Bottom Seal on a Garage DoorIdentify the retainer (T-type, bulb or J-type), measure the door width and seal width, slide out the old garage door bottom seal and fit the new one.Read ↗

Shower door seals 3

Shower Door Seal Types by Glass Thickness: Magnetic, H, F, UThe main shower door seal types explained – magnetic, H, F, U, bottom sweep and water dam – where each goes, and how to order by glass thickness.Read ↗How to Replace a Shower Door Sweep (Bottom Seal)Measure the glass thickness and door width, slide off the old shower door sweep, cut the new clear PVC sweep to length and fit it – with a guide to sweep shapes.Read ↗Magnetic Shower Door Seals: 90°, 135°, 180°How magnetic shower door seals close the gap where two glass doors meet, which angle profile you need and how to measure glass thickness and gap.Read ↗

Custom extruded & moulded rubber parts 10

How to Measure a Rubber Seal Profile for a Custom QuoteMeasure a rubber seal profile correctly: what to photograph, which dimensions matter, how to measure sponge without squashing it, and how to send a sample.Read ↗Custom Rubber Extrusion Quote ChecklistChecklist of what to send for a custom rubber extrusion quote: drawing, dimensions, material, hardness, tolerance, quantity and packing – and what happens next.Read ↗Shore A Hardness for Rubber Seals: What the Numbers MeanShore A hardness explained for sealing strips: typical values for door seals, gaskets and lips, why sponge is not specified in Shore A, and how to state hardness in a quote.Read ↗Compression Set Explained: Why Seals Go FlatWhat compression set is, why door and gasket seals go flat over time, how material and temperature affect it, and how to design a seal that keeps sealing.Read ↗Sealing Materials for High and Low TemperaturesWhich seal material for cold stores, refrigerated trucks, ovens and hot climates: typical temperature ranges of EPDM, silicone, TPE, PVC and PU foam compared.Read ↗EPDM vs Silicone Seals: Which Material Do You Need?EPDM vs silicone sealing strips compared: temperature, weather resistance, tear strength, transparency, food contact and cost – with typical uses for each.Read ↗Neoprene vs EPDM Rubber: Which Is Better for Seals?EPDM vs neoprene (CR) for seals and gaskets: weather, ozone, oil, temperature and cost compared – and when nitrile or silicone is the better choice.Read ↗What Is EPDM Rubber? Properties and Uses for SealsEPDM explained for seal buyers: solid vs sponge, temperature range, weather resistance, where it is used and where it fails (oil).Read ↗What Is Rubber Extrusion? Process and Lead TimesHow custom rubber profiles are made: compound, die, extrusion, curing, cutting and packing – plus what drives tooling cost, sample time and price.Read ↗Glazing Gaskets: Wedge vs Bulb and How to ChooseWindow and façade glazing gaskets explained: wedge (inner) and bulb or fin (outer) gaskets, EPDM vs TPE/PVC, and what to measure for a replacement.Read ↗

Fridge & freezer door gaskets 2

Freezer Door Gasket Replacement GuideWhy freezer gaskets fail, how to check them, how to identify push-in, screw-on and self-adhesive magnetic gaskets and what to measure for a replacement.Read ↗Walk-In Cooler Door Gaskets: Types & ReplacementWalk-in cooler and cold-room door gaskets: magnetic vs compression gaskets, door sweeps, how to measure and when to replace to stop ice and energy loss.Read ↗

08 / LET'S FIND YOUR PROFILE

Start with
your section.

A drawing, a clear cross-section photo, a sample or your gap size. Send what you have.

Dora

Sales Manager · replies usually within 2 hours

dora@onaseal.com ↗WhatsApp +86 159 2054 4735 ↗

For a useful quotation

Drawing or clear cross-section photo
Key dimensions / gap size
Material or performance requirement
Estimated quantity
Packing / branding requirement