Table of Contents
Introduction
Both products are 80 mil butyl sound-deadening mats, but they differ in coverage per package and what comes in the box. FatMat Rattletrap Butyl 80 mil 50 SQ FT Sound Deadener Dampening with Logo Tool Kit Included is positioned around a 50 sq ft roll and an included installation tool kit, while Siless Black 80 mil Car Sound Deadening Mat- Automotive Noise Insulation and Vibration Dampening Overview centers on a 36 sq ft mat and states a roller is not included.
- Coverage per package: FatMat is listed at 50 sq ft, while Siless is listed at 36 sq ft.
- Included tools: FatMat lists a roller, cutting knife, and installation instructions; Siless states installation instructions are included but a roller is not.
- Thickness: Both are presented as 80 mil; Siless also lists 0.08 inches and 2mm alongside 80 mil.
- Branding detail: FatMat is presented “with logo”; Siless branding on the mat is not highlighted the same way.
If you already know you want an 80 mil butyl mat, the decision usually comes down to coverage needs and whether you want a kit included with the mat.
Key Decision Factors Identified From the Review Content
The most decision-relevant differences are package coverage (50 sq ft vs 36 sq ft), what’s included for installation (tool kit vs no roller included), and how thickness is expressed (80 mil on both, with Siless also listing inch/mm conversions).
- Coverage per package
- Included installation items
- Thickness specification format
- Product labeling/branding (logo)
FatMat Rattletrap Butyl 80 mil 50 SQ FT Sound Deadener Dampening with Logo Tool Kit Included Overview
FatMat Rattletrap is presented as a butyl sound-deadening/sound-dampening material at 80 mil nominal thickness with a 50 sq ft roll option.
One stated differentiator is that it’s listed “with logo,” and it also lists a tool kit that includes a roller, a cutting knife, and installation instructions. In the product details, the 50 sq ft roll is described as 33.5 ft by 18 in.
For readers evaluating package completeness, FatMat is the one that explicitly calls out multiple installation items as included, rather than requiring a separate roller purchase.
Siless Black 80 mil Car Sound Deadening Mat- Automotive Noise Insulation and Vibration Dampening Overview
Siless Black is presented as a butyl automotive sound deadener focused on noise insulation and vibration dampening, with thickness listed as 80 mil alongside 0.08 inches and 2mm.
The package coverage is presented as 36 sq ft. For installation items, it states that installation instructions are included but a roller is not.
If you prefer seeing thickness expressed in multiple units (mil/in/mm) within the product details, Siless is the one that explicitly lists those conversions next to the 80 mil callout.
Head-to-Head Comparison: What the Evidence Shows
At a high level, both options sit in the same category: 80 mil butyl sound-deadening mats. The most concrete differences are how much material you get per package and whether installation items are included.
- Coverage per package: FatMat is listed at 50 sq ft, while Siless is listed at 36 sq ft.
- Roll sizing detail: FatMat’s 50 sq ft option is described as a 33.5 ft x 18 in roll; Siless’s comparable size breakdown is Not specified in the available review details.
- Included kit items: FatMat lists a roller, cutting knife, and instructions; Siless states instructions are included and a roller is not.
- Thickness expression: Both state 80 mil; Siless also states 0.08 inches and 2mm.
- Branding note: FatMat is described “with logo”; Siless logo/printing detail is Not stated in the researched material.
Because the shared baseline (80 mil butyl mat) is similar, the difference most readers will feel day-to-day is whether they want more coverage per package and whether they want a roller included up front.
At-a-Glance Comparison Table
| Comparison point | FatMat Rattletrap Butyl 80 mil 50 SQ FT Sound Deadener Dampening with Logo Tool Kit Included | Siless Black 80 mil Car Sound Deadening Mat- Automotive Noise Insulation and Vibration Dampening Overview |
|---|---|---|
| Material type | Butyl | Butyl |
| Thickness | 80 mil nominal | 80 mil / 0.08 inches / 2mm |
| Coverage per package | 50 sq ft | 36 sq ft |
| Roll / sheet sizing detail | 33.5 ft x 18 in | Not provided in the product write-up. |
| Included roller | Included | Not included |
| Included cutting knife | Included | Not provided in the product write-up. |
| Installation instructions | Included | Included |
| Logo / labeled version | With logo | Not provided in the product write-up. |
Which One May Be the Better Fit for Different Situations
If you’re mainly deciding based on coverage per package, the 50 sq ft listing points toward FatMat, while the 36 sq ft listing points toward Siless. If you want a setup that explicitly includes a roller and cutting knife alongside the mat, FatMat is the one that lists those items as included.
If you care about the way thickness is stated in the product details, Siless is the one that presents 80 mil with inch/mm conversions, while FatMat’s thickness is stated in mil (nominal). If you’re comfortable sourcing a roller separately, Siless is the option that explicitly notes the roller is not included.
Frequently Asked Questions
Are both FatMat Rattletrap and Siless Black the same thickness?
Both are presented as 80 mil. Siless also lists the thickness as 0.08 inches and 2mm alongside the 80 mil specification.
How much coverage do you get with each product?
FatMat is listed at 50 sq ft, while Siless is listed at 36 sq ft.
Does either product include installation tools?
FatMat lists a roller, a cutting knife, and installation instructions as included. Siless states that installation instructions are included but a roller is not.
Is either option described as noise insulation and vibration dampening?
Siless is presented as a butyl automotive sound deadener for noise insulation and vibration dampening. FatMat is presented as butyl sound dampening / sound deadener material.
Is there a labeled “with logo” version?
FatMat is described “with logo.” The same type of logo/labeled detail for Siless is Not provided in the product write-up.
Closing Guidance
If you’re choosing between these two based on the clearest stated differences, start with package coverage and what’s included for installation. FatMat is the one listed at 50 sq ft and it explicitly lists a roller and cutting knife as included, while Siless is listed at 36 sq ft and explicitly notes that a roller is not included.
If your priority is seeing thickness spelled out in multiple units in the product details, Siless is the one that provides mil/in/mm together, while FatMat keeps the thickness callout in mil (nominal). For deeper spec-by-spec detail beyond these headline differences, it can help to review each product’s full write-up before deciding.