Alien Draft Seal – All-Weather Patio Door Threshold Seal for Wind, Rain, and Pest Blocking
Alien Draft Seal – All-Weather Patio Door Threshold Seal for Wind, Rain, and Pest Blocking
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Why you'll love it
- Transparent design 'looks like it's not there' — no ugly weatherstrip ruining the home's appearance
- One product solves both cold drafts and shower leaks, replacing multiple specialty sealers
- Cut-to-length application means no tools or pro install needed — measure, cut, stick
- Premium silicone stays flexible and won't crack or harden through repeated cold-weather cycles
- Strong adhesive holds on painted wood, glass, metal, ceramic, fiberglass, and plastic
- 49 feet of coverage (3 rolls) handles an entire home's doors and windows in one purchase
Perfect for
- Sealing gaps under and around front doors to block cold winter drafts
- Weatherproofing windows to keep warm air in and reduce heating bills
- Waterproofing sliding glass shower doors to stop bathroom leaks
- Sealing garage door thresholds against wind, rain, and pests
- Insulating bedroom windows for a warmer, more comfortable sleep environment
Product Information
✅ DRAFT GUARD, BLOCKS COLD AIR, KEEPS WARM AIR IN – Flexible Alien Seal Door Insulation and window insulation tapes to tightly seal gaps around doors to create a door bottom seal strip, and windows as window sealer, blocking out cold air, while keeping warm air in to keep indoors and bedrooms well-insulated, warm and toasty 👍 EXTRA LONG : 3 Rolls per purchase. Each roll of Aliendraft Seal measures 1.4” inches width by 16.34 feet length, giving you a combined total length of 49 feet (588 inches), more than enough to seal the gaps around your home front door seal 💧 EASY APPLICATION, TRANSPARENT AND MOISTURE PROOF: Simply measure and cut Alien Seal to desired length, and apply, it is that simple. Transparent design is not visually obtrusive, and it looks like its not there. Super strong adhesive resists peeling due to moisture, splashes or rain 💪 SUPER STRONG ADHESION: Alien Seals sticks to virtually any surface, both painted and powder-painted wood, glass, metal, ceramic, fiberglass or plastic, allowing for a wide range of application, from preventing drafts from entering gaps around windows, door threshold seal, garage door seal, to leak-proofing sliding doors in the shower as glass shower door seal strip 🚿 PREMIUM-GRADE SILICONE: Made from high grade silicone that resists creasing and hardening, so flaps stay flexible and remain in place as winter window seal throughout the cold months
Brand ALIEN TAPE Material Silicone Color Transparent Product Dimensions 196"L x 1.4"W Item Thickness 0.19 Inches Recommended Uses For Product Windows,Doors UPC 080313076886 Number of Items 1 Global Trade Identification Number 00080313076886 Manufacturer Emson Unit Count 49.0 Feet Part Number 7688 Item Weight 0.01 ounces Item model number 7688 Size 49 Feet - Pack of 1 Item Package Quantity 1 Included Components Alien Draft Seal Insulation Tape 49 Feet Transparent Silicone Batteries Included? No Batteries Required? No Warranty Description Warranty
Frequently Asked Questions
Will the strip hold up to rain on a sliding patio door?
Yes. The moisture-proof construction is engineered to resist peeling from splashes, rain, and humidity, so it performs reliably along outdoor-facing sliding patio doors exposed to weather.
Can I use it on a garage door threshold to block wind-driven rain?
Yes. Many outdoor-focused homeowners apply it along the garage door stop and threshold to seal wind-driven rain, leaves, and cold air, and the flexible silicone flap conforms well to the slightly uneven surfaces common in garage door frames.
Does the adhesive still bond in colder outdoor temperatures?
The high-tack adhesive is designed to perform in cold-weather cycles and will bond to clean, dry surfaces down to typical winter installation temperatures. For best results, install when the surface is above freezing and completely dry.
Will it stop pests from coming under a back door or garage service door?
The flexible silicone flap closes the gap between the door and the frame or threshold, which blocks the small openings that insects, mice, and drafts use to enter, making it a useful barrier on back doors, garage entries, and utility room doors.
Can I use it on an RV or camper door when I travel?
Yes. Because it is cut-to-length and adhesive-backed, you can apply a short piece to an RV or camper door for portable draft blocking on weekend trips, and remove or replace it when you return.
I host outdoor dinners on the patio — will this help with the sliding door sticking point?
Yes. Sealing drafts around a sliding patio door with the clear strip improves comfort in the adjacent indoor space during outdoor dinners and helps the door glide more consistently by keeping the frame aligned and clean.
Is this useful for a four-season porch or sunroom?
Definitely. Sunrooms and four-season porches are notorious for cold-air leaks where glass meets frame, and this clear silicone flap seals those gaps without blocking the view, which is important in a glass-heavy space.
I want one product that works indoors and out — does this really cover both?
Yes. The same 49-foot set can be split between exterior-facing front doors, garage thresholds, sliding patio doors, and indoor windows, so you can weatherize the whole envelope of the home in a single purchase.
How does this compare to a garage door weather seal kit that screws into the bottom?
Bottom garage seals require removing the old seal, drilling new fasteners, and adjusting for door travel, and they only seal the floor gap. This clear strip seals the side and top frame gaps as well, and installs without tools in minutes.
Is this better than expanding foam for sealing outdoor gaps?
Expanding foam is permanent, messy, and cannot be reused or repositioned, and it yellows and crumbles outdoors. The transparent silicone strip is clean, removable, and weather-resistant, making it a much better fit for visible outdoor frames.
Will direct sunlight on a patio door cause the adhesive to fail?
The high-tack adhesive and silicone are designed to handle temperature swings and sun exposure on outdoor-facing doors, and the strip will not soften or bleed in normal sun conditions, though extremely dark south-facing frames can run hot and may benefit from a small test patch first.
Does it hold up to wind-driven rain over the long term?
Yes. The moisture-proof silicone resists water absorption and the adhesive is rated for long-term outdoor use on glass, metal, painted wood, and fiberglass, so it stays in place through repeated rain and wind cycles.
I'm worried this is just an indoor product repackaged for outdoors — is it really outdoor-rated?
The same silicone and adhesive are used on outdoor-facing doors, garage entries, and patio frames, so it is genuinely outdoor-capable. For the most demanding exposures, prep the surface with isopropyl alcohol before applying to maximize bond strength.
How do I install the draft seal on a door or window?
Clean the surface with isopropyl alcohol and let it dry completely. Measure the gap, cut the strip to length with sharp scissors, peel back the adhesive liner, and press the strip firmly along the frame or doorstop. Hold pressure for a few seconds to set the bond, then close the door or window to test the seal.
Can I cut the strip to custom lengths for odd-sized windows?
Yes. The silicone cuts cleanly with household scissors or a utility knife, so you can trim it to fit narrow bathroom windows, arched casements, or unusually tall patio doors without special tools.
How do I remove the strip later without damaging the surface?
Slowly peel the strip back at a low angle while warming the adhesive with a hair dryer. Any remaining adhesive can be rolled off with your finger or removed with a mild adhesive remover safe for the underlying surface.
Does this work on painted wood, glass, metal, ceramic, fiberglass, and plastic?
Yes. The high-tack adhesive is specifically rated for all of those surfaces, including painted wood doors, glass shower enclosures, metal patio frames, ceramic tile, fiberglass tubs, and plastic window frames.
Will it stick to a textured or uneven surface?
It bonds best to smooth, clean, non-porous surfaces. On rough brick, stucco, or heavily textured wood, the adhesive contact area is reduced and the hold will not be as strong, so a smoother frame surface is recommended where possible.
What exactly is included in the box?
You receive three rolls of transparent silicone draft seal, totaling 49 feet, with each roll measuring 1.4 inches wide by 16.34 feet long. No additional tools, adhesives, or accessories are required for installation.
Is the silicone safe to use around children and pets?
Yes. Once installed, the strip is inert silicone with a sealed adhesive backing. It does not contain sharp edges, small loose parts, or harsh chemicals, and it is safe for homes with children and pets.
Will the strip harden, crack, or lose its seal after a few winters?
No. The premium silicone is engineered to stay flexible through repeated cold-weather cycles and resist creasing, hardening, and cracking, so it maintains a consistent seal across multiple winters rather than deteriorating like foam or rubber weatherstripping.
What is the difference between this draft seal and traditional foam weatherstripping?
Foam weatherstripping compresses over time, yellows, absorbs moisture, and tends to look obvious on visible frames. This transparent silicone flap stays flexible, resists moisture, and is designed to be nearly invisible, providing a longer-lasting and more attractive seal for the same gaps.
