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OutdoorGear
Real discussions from product enthusiasts
DIY Permethrin Effectiveness Varies Over Time
Users in r/Ultralight noted that while DIY permethrin treatment on clothing reduced tick encounters, effectiveness waned after 45 days, with ticks detaching faster. This suggests DIY applications may offer less durable protection compared to factory-treated garments or professional services.
Professional Treatment Outperforms DEET for Some Users
On the Appalachian Trail, users seeking longer-lasting protection found professional treatments like Insect Shield provided zero tick and mosquito bites over a 6-day trip. This contrasted with companions using DEET who reported significant bites during the same period.
Sawyer Permethrin Highly Effective, But Not 100%
Discussions on r/CampingGear and other forums indicate Sawyer Permethrin is "highly effective" for warding off ticks and mosquitoes, with users reporting no ticks found on treated clothing. However, it's acknowledged by users not to be a completely foolproof solution against all insect encounters.
Odorless Application and Efficient Gear Coverage
Real-world reviews highlight that Sawyer Permethrin is odorless once dry, a significant user benefit. One user reported treating outerwear shells, shoes, and a backpack with a single bottle, indicating efficient coverage for various items of outdoor gear.
Strong Tick Reduction; Mosquito Efficacy Mixed
A University of Rhode Island study shows treated shoes and socks reduce tick bites by 73.6 times. While excellent for ticks, some users found Sawyer Permethrin less effective against mosquitoes compared to DEET and noted potential issues with absorption into water-resistant fabrics.
Expert answers based on real user experience
Users consistently report Sawyer Permethrin significantly reduces encounters with ticks and mosquitoes, with many noting insects "hardly ever landed or bit" them. A key finding from a University of Rhode Island study indicates that treated shoes and socks reduced tick bites by 73.6 times. While not a 100% guarantee, it's described as highly effective for activities like backpacking and camping, providing protection against over 55 insect types, including disease vectors like those carrying Lyme, West Nile, Zika, and Chikungunya.
r/CampingGear, r/Ultralight
Sawyer Permethrin is designed to bond to fabric fibers, offering protection for up to 6 weeks or through 6 washings, whichever comes first. Community discussions suggest that DIY application might offer less durability than factory-treated garments or professional services like Insect Shield. While one user observed reduced effectiveness against ticks after 45 days, another found the protection lasted for at least 2 weeks during a particularly buggy season, even with sweat and water exposure, indicating variable real-world performance.
Sawyer
Sawyer Sawyer Products Premium Permethrin Insect Repellent for Clothing, Gear & Tents. Features: Permethrin spray bonds to fabric fibers for up to 6 weeks or through 6 washin.... Reduce likelihood of a tick bite by 73.6 times by treating shoes and socks wi.... Add a layer of protection to your clothing and gear with Permethrin insect an.... Ideal for backpacking, backyard BBQs, hunting, and other outdoor activities, .... Sawyer Permethrin stays effective despite sweat or water, degrades via U...
| UPC | 050716006452 |
| ASIN | B08HJTXGS3 |
| Size | 4.5 Fl Oz (Pack of 6) |
| Item Form | 4.5-oz Trigger Spray / 6-Pack |
| Brand Name | Sawyer |
| Scent Name | Unscented |
| Unit Count | 27.0 Ounce |
| Item Volume | 27 Fluid Ounces |
| Manufacturer | Sawyer Products |
| Model Number | SP645 |
| Item Nype Name | Permethrin Insect Repellent |
| Number of Items | 6 |
| Material Features | Unscented when completely dry |
| Included Components | 6 bottles, 1 Trigger spray |
| Warranty Description | Shelf Life of 5+ Years |
| Manufacturer Part Number |
r/Ultralight, r/AppalachianTrail
The product is available in an 18-ounce aerosol spray, which is intended to treat approximately 4 adult outfits. One user reported successfully treating outerwear shells, shoes, and a backpack by using about one-quarter of a bottle. The spray applies easily, allowing for even coverage without staining or damaging treated materials such as fabrics, plastics, or finished outdoor gear. It dries odorless, which is a significant positive for users.
Product Specs, Reviews
The repellent is documented as effective against over 55 insect types, including disease-carrying mosquitoes and ticks. While user reports indicate it is particularly strong against ticks, some users noted it may be less effective against mosquitoes compared to DEET-based repellents. Furthermore, it's observed that permethrin may not absorb as efficiently into water-resistant fabrics, potentially leading to reduced efficacy on those specific materials.
r/CampingGear, Reviews
While the product indicates degradation via UV exposure or washing machine agitation, specific quantitative data on the permethrin loss rate beyond the initial 6-week or 6-wash guideline is not widely detailed in user discussions. Expert analysis suggests that each wash cycle, especially with detergent and agitation, can gradually strip permethrin molecules from fabric. Sustained UV exposure, particularly in high-altitude or equatorial regions with intense sunlight, can also accelerate the breakdown of permethrin, potentially reducing its protective efficacy over extended periods.
Product Specs, Scientific Literature
Permethrin is recognized for its high toxicity to fish and aquatic invertebrates. Although user forums briefly mention environmental concerns for aquatic life, detailed quantitative data regarding the concentration levels that pose a risk in typical outdoor scenarios, such as washing gear near streams or from rain runoff, is not readily available. Professional application guidelines often stress avoiding direct contact with water bodies, underscoring the need for careful use in sensitive aquatic environments.
Product Specs, Environmental Studies
| SP645 |
| Global Trade Identification Number | 10050716006459 |