· Grease-Resistant Deli & Butcher Paper
Sealer Sales Reinforced Water Activated Kraft Tape KT-70-450
Kraft tape base is lower concern; coating composition not disclosed.
Water-activated kraft tape uses kraft paper with an unspecified water-resistant coating. Coating composition isn't publicly disclosed, raising questions about PFAS in grease-resistant treatments.
The better-graded swap
If You Care
If You Care Parchment Baking Paper
90/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Water-activated kraft tape with water-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
Coating composition (water-resistant treatment)
Manufacturer has not disclosed the chemical identity of the water-resistant coating applied to the kraft base. Water-resistant treatments sometimes include fluorinated compounds (PFAS), acrylates, or polyurethanes; none are confirmed for this product.
Mold or bacterial growth on stored tape
Kraft tape stored in high humidity or wet conditions can develop mold or bacterial films on the adhesive surface. This is a storage and handling risk, not an inherent chemical hazard, but reduces product safety if rolls are used after degradation.
What’s reassuring
Adhesive residue migration to food
Water-activated adhesives (typically starch-based or synthetic polymers) are designed to remain on paper and do not migrate into food when tape is used for external box sealing only. No contamination incidents recorded.
Ink or dyes on printed tape
No specific information is available on inks used if this tape carries printed logos or branding. Standard food-contact printing inks are regulated, but the KT-70-450 product sheet does not specify ink composition or migration testing.
Solvent residues from manufacturing
Kraft tape manufacturing can involve aqueous or solvent-based processes. No recall or residue testing data exists for Sealer Sales tapes, suggesting acceptable compliance with food packaging standards, but independent verification is absent.
The full breakdown
What it's made of and why it matters
Sealer Sales KT-70-450 is kraft paper tape activated by water, with an applied water-resistant coating (composition not publicly disclosed). The kraft base itself is cellulose fiber and poses no established chemical leaching risk during normal sealing of food boxes. The undisclosed water-resistant coating is the variable; coatings on kraft tape sometimes contain acrylic or polyurethane resins, but no specific manufacturing data is available for this product.
The brand's record and disclosure
Sealing Strip does not publicly disclose coating formulations or provide material safety data sheets for the KT-70-450 line. No recalls or contamination incidents are on record for this tape. The brand has not made public statements on PFAS presence or avoidance, creating uncertainty about fluorinated water-resistant treatments. This silence is typical for commodity tape manufacturers but limits transparency.
How it compares in its category
Water-activated kraft tape is considered lower-risk than synthetic adhesive tapes (which may contain plasticizers or solvents) for food box sealing. This product sits in the standard performance tier; comparable options from Scotch, 3M, and others carry similar disclosure gaps. Kraft tape avoids the microplastic shedding risk of plastic-based packaging tapes, a practical advantage in food contact.
If you buy it
Store tape in dry conditions; water-activated adhesive activates only when intentionally wetted during application. Avoid prolonged contact between wet tape and food surfaces; use for external box sealing only. Tape performs reliably at room temperature. Replace rolls if adhesive deteriorates or mold growth appears on stored tape in humid conditions.
What we don’t know
- Basis
- Model estimate, 62% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Grease-Resistant Deli & Butcher Paper
IDL Packaging
White Butcher Paper 18" x Natural Butcher Paper Roll for Meat and Fish
bleached paper, uncoated
Mold or microbial growth during storage
Limited concern
Brand PFAS statement on record, which we have not verified.
⚠Starting grade for this product type
IDL Packaging
White Butcher Paper 18" x 12000" Natural Butcher Paper Roll for Meat and Fish
bleached kraft paper, no specified coating
Ink or printing residue (if printed side contacts food)
Limited concern
Mold or microbial growth during storage
Limited concern
Brand PFAS statement on record, which we have not verified.
⚠Starting grade for this product type
If You Care
Parchment Baking Sheets
unbleached parchment paper, silicone coating
Silicone coating degradation under heat stress
Limited concern
Mold or microbial growth if stored damp
Limited concern
Brand no-added-PFAS claim and a 2021 lab result with no fluorine detected.
✓Lab test found no PFAS
More grease-resistant deli & butcher paper grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.