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GREAT STUFF™ Pestblock Insulating Foam Sealant
12 oz | Gray Foam | Seals Gaps up to 1" | Indoor/Outdoor | Pesticide-Free
Help seal the small gaps and openings rodents can use to enter your RV.
GREAT STUFF™ Pestblock Insulating Foam Sealant expands to fill cracks, gaps, and penetrations around plumbing lines, wiring, utility openings, underbelly areas, and other stationary entry points where mice and insects may find their way inside. It is designed to seal gaps and cracks up to 1 inch.
It is a useful addition to an RV rodent-prevention plan because it allows you to seal openings that do not need to move or remain accessible.
Ideal for RV Entry Points Around:
- Plumbing and water-line penetrations
- Electrical and wiring openings
- Gaps in the RV underbelly
- Utility and service penetrations
- Small cracks around frames and compartments
- Other stationary openings where pests may enter
Why We Recommend It
- Expands to fill irregular gaps and cracks up to 1 inch
- Helps block common pest entry points
- Gray foam blends better with many RV underbody and utility areas
- Weather-resistant once cured
- Designed for indoor and outdoor use
- Easy-to-control Smart Dispenser helps reduce waste
- Pesticide-free pest-blocking solution
An Important Part of a Complete RV Rodent-Prevention Strategy
Not every opening on an RV should be sealed with foam.
Use GREAT STUFF™ Pestblock for stationary gaps and penetrations that can be permanently sealed.
For the opening around an RV slide-out mechanism, where components must continue to move freely, use RV Rodent Guard to create a removable barrier without permanently filling the opening.
Together, these products help address two very different types of rodent entry points around an RV.
Important
Foam alone should not be considered completely chew-proof. For openings where additional resistance is needed, consider using an appropriate metal mesh or other physical barrier along with the foam.
Always follow the manufacturer's application, safety, ventilation, temperature, and curing instructions printed on the container. Do not expose the aerosol can to temperatures above 120°F (49°C).
Shipping Notice
This product is an aerosol and is classified as hazardous material for transportation. It can only be shipped using eligible ground transportation services within approved destinations. Air and international shipping are not available for this item.
For shipments to Canada:
Duties apply when the shipment value is $150 CAD or more. Import taxes (GST/HST) apply when the shipment value is $40 CAD or more.
This means shipments under $40 CAD are exempt from both duties and taxes, shipments from $40–$149 CAD are subject to taxes only, and shipments of $150 CAD and above are subject to both duties and taxes. Please note that duties and taxes are not included in your order total and will be collected by the carrier at delivery.
We recommend using USPS for shipments to Canada. While delivery may be slower, it is more cost-effective and avoids the additional brokerage fees charged by UPS.
Order Processing
In-stock items typically ship the same day or the next business day after your order is placed. Transit time depends on the shipping service and carrier selected at checkout. Orders are not shipped or delivered on weekends or holidays.
Shipping Rates & Delivery Estimates
$4.99 flat rate shipping is available for eligible orders shipped within the contiguous United States and Washington, D.C. USPS and UPS carrier-calculated shipping options may also be available at checkout. Alaska, Hawaii, U.S. territories, military addresses, and Canada use available carrier-calculated rates shown at checkout.
Pressurized and aerosol products, including Pestblock Insulating Foam Sealant, are limited to eligible ground shipping services and are not available for expedited air service.
Delivery times are estimates only and are not guaranteed.
Questions? Contact orderstatus@rvrodentguard.com or call 888-796-2455.
We have a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
General Return Requirements
Contact returns@rvrodentguard.com before sending an item back. Returned items must be in the condition required for their product type below.
Rodent Barrier Products
- Unused, uninstalled, and unmodified
- All hardware must remain attached
- Breakout or trim tabs must remain intact
RV Underbelly Repair Tape
- Unused and uncut
- Returned in original, saleable condition
Aerosol and Sealant Products
- Unused and unopened
- Returned in original, saleable condition
For safety and carrier-compliance reasons, opened or partially used pressurized or aerosol products are not eligible for return unless they arrived damaged or defective.
Return Shipping
Customers are responsible for return shipping costs unless the item arrived damaged, defective, or incorrect. If we provide a return label for a standard return, its cost will be deducted from the refund.
Damaged or Incorrect Items
Please contact us promptly if an item arrives damaged, defective, or incorrect. Include your order number and photos when applicable so we can evaluate the issue and make it right.
Refunds
After we receive and inspect an eligible return, approved refunds are issued to the original payment method. Please allow up to 10 business days for processing after approval; your bank or card issuer may require additional time to post the refund.