E-Z Sert Urethane Seat Insert Pour Kit - DIY Custom Seat Mold

Transform your race seat into a precision-fitted safety shell with the E-Z Sert Urethane Seat Insert Pour Kit, engineered for drivers who want a custom molded insert that hugs their body, improves safety, and enhances comfort. This kit gives you all the tools to pour your own urethane foam insert that molds to your contours—turning any racing seat into a bespoke fit tailored to your frame.

Key Features & Benefits

• Custom, Body-Contoured Fit
  The pour kit lets you mold the insert precisely against your body, covering lower back, hips, pelvis, and thighs (in the small size). This creates a custom support structure that holds you firmly during lateral loads and impacts.

• Improved Safety Through Load Distribution
  A properly molded seat insert helps spread impact energy more evenly across the body rather than concentrating stress at a few pressure points. In a crash or hard maneuver, the insert helps stabilize the occupant and reduce injury risk.

• Better Driver Control & Feedback
  By minimizing interior movement, the custom insert helps you “become one” with the seat. You’ll feel chassis inputs more directly, which can aid your reaction speed and consistency on track.

• Reduced Fatigue & Vibration Dampening
  The urethane foam absorbs minor shocks and vibration, lessening driver fatigue during extended runs or on bumpy surfaces.

• Comprehensive Kit with Instructions
  The kit includes flame-retardant MaxGard upholstery, all necessary materials, and detailed, step-by-step instructions to guide you through the molding process.

• Versatile Application
  Even if your car didn’t come with a molded insert, this kit transforms virtually any compatible race seat into a custom-fitted cockpit.

Specifications (Typical / What’s Included)

• Brand: ButlerBuilt

• SKU / Model: BUTBBP-2072 (Small size)

• Coverage: Lower body (hips, thighs, pelvis, lower back)

• Materials: Urethane foam compound + flame-retardant upholstery (MaxGard)

• Kit Includes: Foam pour solution, mold materials, upholstery, instructions

• Application: Ideal for new or existing race seats, especially in quarter midgets, karting, and other open cockpit racing classes

🛡 Why a Custom Poured Seat Insert Matters for Safety

A factory or generic racing seat provides structure, but it can’t anticipate every individual’s unique shape. Even small gaps between your body and the seat can allow movement under load, which increases the chance of injury in a collision or roll. The E-Z Sert insert fills that gap.

• Secure Restraint in Impacts: In a crash, your body is less likely to slide or rotate when captured by a custom molding.

• Energy Absorption: The foam helps absorb and decelerate forces more gently than hard surfaces alone.

• Consistent Support Under Load: During high G corners or abrupt transitions, the molded insert keeps your posture consistent, reducing fatigue and maintaining correct seating alignment.

• Enhanced Harness Stability: With less internal motion, your shoulder belts, 5-point harness, or other restraints remain aligned as intended—delivering forces as designed rather than misdirected.

Why Every Serious Racer Needs One

When you invest in a custom poured seat insert, you're not just chasing comfort—you’re bolstering your safety margin. This type of insert is one of the most critical upgrades you can make to ensure your racing seat truly works with you, not against you. Whether you're building your first car or improving your current setup, the E-Z Sert Urethane Seat Insert Pour Kit brings professional-level custom fit and protection to your cockpit.

Upgrade your seat today for safer, sharper performance behind the wheel.