---
product_id: 14862897
title: "M PM999 All-Purpose Laboratory Film, 4\" x 250' on 1\" Core"
brand: "parafilm"
price: "$98.02"
currency: USD
in_stock: true
reviews_count: 13
category: "Parafilm"
url: https://www.desertcart.us/products/14862897-m-pm999-all-purpose-laboratory-film-4-x-250-on
store_origin: US
region: United States of America
---

# 200% stretchability 4" x 250' large roll chemical resistant seal M PM999 All-Purpose Laboratory Film, 4" x 250' on 1" Core

**Brand:** parafilm
**Price:** $98.02
**Availability:** ✅ In Stock

## Summary

> 🧪 Seal your success with the stretch that labs and pros trust!

## Quick Answers

- **What is this?** M PM999 All-Purpose Laboratory Film, 4" x 250' on 1" Core by parafilm
- **How much does it cost?** $98.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/14862897-m-pm999-all-purpose-laboratory-film-4-x-250-on)

## Best For

- parafilm enthusiasts

## Why This Product

- Trusted parafilm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Chemical Shield:** Protects samples from acids, alcohols, and gases
- • **Durable & Flexible:** Folds and twists around sharp edges without rupture
- • **Generous Roll Size:** 250 feet of versatile film for long-lasting use
- • **Self-Adhering Magic:** Instantly sticks to itself for airtight, reliable seals
- • **Unmatched Stretch & Seal:** Expands 200% to conform perfectly without tearing

## Overview

Parafilm M PM999 is a semi-transparent, chemically resistant laboratory sealing film measuring 4 inches by 250 feet. Known for its exceptional 200% stretchability and self-adhesive properties, it provides airtight protection for culture tubes, flasks, and petri dishes. Durable enough to fold and twist without tearing, this US-made film is a staple for professionals seeking reliable, long-lasting sample protection.

## Description

Parafilm M is a semi-transparent laboratory and general-purpose sealing film. Sticks instantly to itself and is ideal for sealing culture tubes, flasks, petri dishes and virtually any laboratory vessel or instrument. It provides protection to your samples from outside air, gases, alcohols, most acids, and lightly concentrated alkalies. Film thickness: 0.005". size: 4" x 250 ft. Rolls. 1 roll/Pack; 12 packs/case. Capitol #: p1540-5.

Review: Classic Parafilm works well as always - Parafilm is commonly used in labs to tightly close and seal vials, bottles, jars, etc. containing liquids or solids. I use it often to seal partially used glue containers. It stretches and conforms to the shape of the tube or bottle and forms a good seal. It can be wrapped around multiple times and it sticks to itself very well because of stretching. For this reason it can stick better than kitchen plastic wrap, and it's also chemically relatively inert and resistant to many chemicals, including strong acids and bases (for some time. ) It seems expensive, but the package is heavy and it last for a long time if used for its purpose. It's generally not used for very large openings, like food containers or trays. The best way of removing the paper backing is to slightly stretch the film until the paper tears.
Review: Multi-functional Must Have Product - The classic, user-friendly, flexible solution for the lab (or many projects at home). I have used Parafilm-M for years and happy to say, it is one of my most favorite, multi-functional products of all time. Highly recommend it for lab and for other uses around the house. I have heard the term "coat hanger and duct tape" for years...that term needs to be restated as "coat hanger, duct tape, and Parafilm!"

## Features

- Can be folded repeatedly and twisted around sharp surface without rupturing
- Increases approximately 200 percent when stretched lengthwise at 21°c (70°f)
- Rolls are interlined with paper to prevent adhering
- Country of origin: United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006RA7HFS |
| Best Sellers Rank | #42,946 in Office Products ( See Top 100 in Office Products ) #64 in Stretch Film |
| Customer Reviews | 4.4 4.4 out of 5 stars (147) |
| Date First Available | May 8, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 2 pounds |
| Item model number | PM999 |
| Manufacturer | Bemis |
| Product Dimensions | 5.25 x 4.25 x 5 inches |

## Product Details

- **Brand:** Parafilm
- **Exposures per Roll:** 12
- **Film Color:** Color
- **Film Format Type:** Parafilm
- **Model Name:** M PM999

## Images

![M PM999 All-Purpose Laboratory Film, 4" x 250' on 1" Core - Image 1](https://m.media-amazon.com/images/I/81ckoVzNeCL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: Besides the length, what is the difference between 4" x 125' and 4" x 250' on 1" core?**
A: To my knowledge the only difference between the two is the amount of Parafilm on each roll.  Both are 4"wide, and both have a center hole or 'core' of 1"  But one has 125 feet and the other has 250 feet per roll. It also comes in a narrower roll, I believe about 2" wide, which is what I have.  I hope this helps, but perhaps contacting the manufacturer would provide a more definitive answer, in the event that I am missing something.

**Q: What does pm999 mean? are there different grades or types of parafilm? does the number refer to the size of the tape , or its permeability?**
A: PM999 is the model number. We offer three different sizes of parafilm: 2” x 250’ (Model # PM992), 4” x 125’ (PM996) and 4” x 250’ (PM998).

**Q: Please can anyone tell me if it comes in the cardboard box dispenser the 4"250' core?**
A: Mr. Cappello:  I purchased the 4" x 125' roll.  The box, on the top;  Dispense Parafilm Through This Opening.  On the side says; For Use In Your Dispenser.   At the bottom on the side; a slot says 'pinch here' for a dispensing slot.  The Parafilm must be cut, the size you need, off anyway.  So, the box works fine for me.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Classic Parafilm works well as always
*by M***. on September 19, 2025*

Parafilm is commonly used in labs to tightly close and seal vials, bottles, jars, etc. containing liquids or solids. I use it often to seal partially used glue containers. It stretches and conforms to the shape of the tube or bottle and forms a good seal. It can be wrapped around multiple times and it sticks to itself very well because of stretching. For this reason it can stick better than kitchen plastic wrap, and it's also chemically relatively inert and resistant to many chemicals, including strong acids and bases (for some time. ) It seems expensive, but the package is heavy and it last for a long time if used for its purpose. It's generally not used for very large openings, like food containers or trays. The best way of removing the paper backing is to slightly stretch the film until the paper tears.

### ⭐⭐⭐⭐⭐ Multi-functional Must Have Product
*by J***F on January 5, 2015*

The classic, user-friendly, flexible solution for the lab (or many projects at home). I have used Parafilm-M for years and happy to say, it is one of my most favorite, multi-functional products of all time. Highly recommend it for lab and for other uses around the house. I have heard the term "coat hanger and duct tape" for years...that term needs to be restated as "coat hanger, duct tape, and Parafilm!"

### ⭐⭐⭐⭐⭐ A trust-worthy product
*by R***A on June 1, 2021*

Parafilm is routinely used in lab settings and we needed to replenish our supply. It works as expected.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-14*