We ship within theUnited States only. We don't currently offer international shipping.

Most U.S. orders arrive in 3–8 business days after they ship. You'll receive a tracking link by email so you can follow your package the whole way.

Yes. Once your order ships, we email you a tracking number and link so you can follow it every step of the way.

If your order hasn't shipped yet, email AMPTERN@OUTLOOK.COM right away and we'll cancel it. Once it's on its way, we can't pull it back — but you can return it after delivery.

Email AMPTERN@OUTLOOK.COM as soon as possible. If the order hasn't shipped, we'll update the address. If it has already shipped, we'll need to wait for the package to come back before resending or refunding.

No.We require a physical street address for all deliveries. PO boxes, APO/FPO addresses, and similar mail-only addresses can't be processed.

Email AMPTERN@OUTLOOK.COM within 30 days of receiving your order. Include your order number and reason for return. Once approved, we'll send you a prepaid return label and instructions.

30 days from delivery.After that, we're unable to process returns. The item must be unused, in original packaging, with proof of purchase.

No. Once your return is approved, we'll send you a prepaid return label.

No. Only unused items in original packaging are eligible. This applies to consumables like spray foam, CA glue, and cleaners — once opened, they can't be returned for safety and product integrity reasons.

Contact AMPTERN@OUTLOOK.COM immediately with your order number and clear photos of the issue. We'll arrange a replacement or refund as quickly as possible.

We don't offer direct exchanges. The fastest way is to return the original item, then place a new order for the replacement.

Once we receive and inspect your return, we'll email you the approval status. Approved refunds go to your original payment method. Your bank may take a few business days to post the credit.

We can't process standard returns past 30 days. But if the issue is damage or a defect, email AMPTERN@OUTLOOK.COM— we'll do our best to help.

AMPTERN Spray Foam has an R-value of R-3.7 per inch. As a closed-cell polyurethane foam, it sits in the medium-high range for thermal insulation performance. A higher R-value means better resistance to heat transfer — practical examples: 2″ application gives R-7.4, 3″ gives R-11.1, 4″ gives R-14.8″

1. Shake the can thoroughly before use.
2. Attach the foam gun and apply evenly to the target area.
3. Let it expand to fill gaps and cracks.
4. Wait 24 hours for full cure before cutting or shaping.

Wipe excess foam with the foam cleaner before it cures — once it sets, you'll need to cut it off.

Tack-free in 5–15 minutes. Cuttable in about 1 hour.Fully cured in 24 hours.For maximum strength and insulation performance, don't sand, paint, or stress the foam until the 24-hour cure is complete.

For best results, apply when both the can and surface are between 41°F and 86°F (5°C–30°C). Cold chemicals don't mix or expand properly. If your kit has been cold, store it indoors at room temperature for at least 24 hours before use.

It bonds well to glass, MDF, wood, metal, concrete, stone, brick, granite, plaster, and most building materials — indoors and outdoors.

Avoid polyethylene, polypropylene, silicone, Teflon, and other non-stick plastics — foam won't adhere to these.

Yes. Once fully cured (24 hours), the foam can be trimmed and painted with most water- or oil-based paints. UV light yellows and degrades exposed foam over time, so painting or covering is recommended for any visible installation.

No. Cured polyurethane foam has no nutritional value and isn't a food source for mold, mice, or insects. Closed-cell foam acts as a moisture and air barrier, which actuallyreducesmold risk. Pests find sealed walls and crawl spaces harder to penetrate after foam application.

Closed-cell foam provides moderate sound dampening, especially for blocking air-transmitted noise that travels through gaps and seams. While it's not as absorptive as open-cell foam for pure acoustic applications, it still meaningfully reduces sound transmission in walls, ceilings, and crawl spaces — particularly when paired with sound-absorbing materials like rockwool batts.

Yes, when protected from direct sunlight (under eaves, in crawl spaces, on the underside of decks). Direct UV exposure causes the foam to yellow and break down over time. For exterior use, cover the foam with paint, drywall, or appropriate sheathing.

Yes. Once fully cured, the foam can be trimmed with a serrated knife, sanded, or shaped to a smooth finish. For closed-cell foam, a coarse rasp or grinder works best.

Unopened cans have a shelf life of up to 2 years from the manufacturing date when stored at room temperature in a dry, ventilated area. Once opened, use within 30 days — the gun stays usable longer if cleaned properly between sessions.

No. Cured foam is safe around standard electrical wiring and copper or PEX plumbing. Avoid spraying directly into electrical boxes — cover them with masking tape during application.

• Around recessed lighting that isn't IC-rated (heat hazard)
• Directly on hot surfaces like furnace flues or chimneys
• On non-stick plastics (PE, PP, Teflon, silicone)
• On wet surfaces (>20% moisture)
• In sub-41°F temperatures

Multiply the area (square feet) by the desired thickness in inches, then divide by the can's coverage:

• 31.7 oz can: (area × thickness) ÷ 20 = cans needed