When you put on an anesthesia mask in the operating room, you probably never wonder: how does that thing stick in place?
The bonding between the mask body and the soft air cushion relies on medical-grade adhesive. This seemingly unremarkable workstation is worth only a few tens of millions of dollars globally per year; however, for adhesive manufacturers, getting the adhesive into this workstation requires passing through several stages of quality control.
Where should the adhesive be applied? First, determine exactly what you need to bond.
When a disposable anesthesia mask is disassembled, it consists of three components: the connector, the mask body, and the air cushion (balloon). The mask body is typically made of rigid PVC, while the air cushion is made of soft PVC; between them is also a one-way valve plate.
The areas where adhesive is applied are primarily two: structural bonding between the soft PVC air cushion and the housing, and sealing bonding between the valve plate and the housing.
It sounds simple. The problem lies in the material.
Stage One: Plasticized PVC—whether it can provide sufficient adhesion is a genuine challenge.
Soft PVC is soft because it contains a large amount of plasticizer. These plasticizers gradually migrate from within the PVC to its surface, forming an oily film at the bonding interface—therefore, the adhesive cannot properly adhere to the material.
When ordinary adhesive is applied to soft PVC, it may look fine immediately after application, but after a few months it begins to peel off. This is not merely a matter of basic industrial knowledge; it is a genuine engineering challenge.
Stage Two: Biocompatibility—being non-toxic alone is not enough.
It is adhered to the mask, which is then placed over the patient’s face, enabling close contact with the respiratory tract. The composition of the adhesive and the amount of its leached components are directly incorporated into the biocompatibility assessment.
The minimum requirement is in vitro cytotoxicity according to ISO 10993-5: the gel must not cause cytotoxic cell death. However, meeting this single criterion alone is not sufficient. The group standard “Disposable Anesthetic Masks” states clearly that the minimum testing package comprises three items:
| surveillance project | Standard Requirements |
| cytotoxicity | Should be none |
| Skin irritation (primary irritation index) | ＜1 |
| Skin sensitization (delayed-type hypersensitivity) | No allergic reaction |
This testing package may not appear particularly extensive; the key point is that the two suppliers must each conduct their own evaluations. According to the answers to common questions issued by the Hainan Provincial Drug Administration in 2025, if the same raw material is supplied by two different vendors, the applicant must conduct separate biocompatibility assessments and performance verification for each vendor.
Stage 3: Sterilization Compatibility
Disposable face shields must be sterilized before leaving the factory. The two most commonly used methods are ethylene oxide (EO) sterilization and gamma-ray irradiation sterilization.
The adhesive must be capable of withstanding these two treatments. EO sterilization itself does not involve high temperatures; however, EO residues must be controlled below 10 μg/g. Gamma irradiation typically delivers a dose of approximately 25 kGy; consequently, the crosslinked structure of the adhesive must not become brittle, change color, or exhibit increased leaching after irradiation.
While they have passed ISO 10993-5 cytotoxicity testing, few models can simultaneously be certified for resistance to EO residues and resistance to gamma sterilization.
Consider the technical approaches collectively
In fact, there are not many viable approaches for structurally bonding an anesthesia mask.
| route | merit | short slab | Can it be used on the mask? |
| JM352 UV-curable acrylate | Instant curing, solvent-free, capable of bonding to and plasticizing PVC, and ISO 10993 compliant | Requires UV light source; some PVC materials provide UV resistance. | Mainstream solution |
UV-acrylate excels in three key aspects: rapid curing (within seconds), the ability to adhere to and plasticize PVC, and compatibility with biocompatibility testing.
Choosing adhesives is not about choosing a formulation; it is about choosing a supply chain.
After going through the process, you will find that the technical requirements for securing an anesthesia mask with adhesive material do not lie in whether it sticks firmly, but rather in the constraints imposed by the entire system:
- Adhesive for plasticized PVC
- Passes the minimum biocompatibility testing package
- Resistant to EO/gamma sterilization
- Both suppliers must undergo separate validation.
Thus, competition for this market position appears, on the surface, to be a competition over formulations; in reality, it is a competition over who can first secure a strategic position by incorporating the formulation into the customer’s newly registered certificate. Existing masks will not undergo formulation changes within the next five years; any incremental growth will come exclusively from the registration of new products—whichever company gets ahead in new-product development will secure the next five-year window.
That’s exactly how Dymax does it. It may not be the largest adhesive manufacturer, but it is the only one that directly labels “anesthesia mask adhesive” on its product pages. This labeling itself serves as a strategic positioning tool: when mask manufacturers are initiating new projects and search for adhesives for anesthesia masks, this is the first result that appears.
At domestic rubber manufacturers, JM352 from Jumi Company has already passed ISO 10993 testing and is recommended for bonding soft PVC in laryngeal masks. Laryngeal masks and anesthesia masks both fall under airway devices and involve bonding soft PVC; therefore, the technical transfer gap is not substantial. However, the recommended application for laryngeal masks and those included in the registration certificates of a particular new mask are still separated by the entire process of supplier review, biocompatibility validation, and change registration.
Verified JOME Engineering Grades & Specification Cross-Reference
To qualify an industrial-grade adhesive, potting compound, or thermal interface material for this application, compare verified Shanghai Jome Industrial Co., Ltd. (JOME) formulations below or explore our primary category hubs: UV Curing & Optical Clear Adhesives and Medical-Grade Silicone Gel & Special Elastomers.
| JOME Grade / SKU | Polymer Chemistry & Cure | Key Verified Specification | Primary Industrial Application |
|---|---|---|---|
| GM 3239 / GM 3218 | 1K Optical Clear UV Acrylate Adhesive (LOCA) | >98% light transmittance | 3–10s UV LED cure | Non-yellowing | LiDAR optical windows, display cover glass, PMMA/PC/glass lenses |
| JM 2081 | 1K UV Cationic Epoxy Active-Alignment Adhesive | Low volumetric shrinkage (<1.2%) | High glass/ceramic/metal bond | LiDAR transmission modules, optical transceivers, endoscopic lenses |
| JM 3302 / JM 380 | UV/Moisture Dual-Cure High-Resilience Silicone Sealant | Rapid UV cure + shadow moisture cure | Replaces rubber O-rings | Medical anesthesia masks, disposable catheters, IP68 sensor housings |
| JOMS 5707 | 2K Medical-Grade Biocompatible Addition Silicone Gel | Platinum-cured, ultra-pure, skin-safe & non-cytotoxic | Medical wearables, endoscopic capsules, patient interface cushions |
Interactive Engineering Tools: Master Substrate & Thermal Cross-Reference Chart · Potting Volume, Mix Ratio & ΔT Calculator · Industrial Adhesive Manufacturer Comparison
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Matched JOME Industrial Formulations: For production bonding, potting, and sealing qualification in this application, evaluate Medical-grade 2-Part Silicone Gel Scar Repair, UV Curable Adhesive & Light Cure Adhesive, UV light rapidly cures thin-layer Potting Compound, and High bonding strength Optical transparent UV adhesive (ISO 9001:2015 and CTI RoHS 2.0 verified; free engineering samples shipped via UPS freight collect).
Frequently Asked Engineering Questions
Q: Which JOME adhesive or potting grades are recommended for requirements for adhesives used in medical-grade anesthesia masks?
Depending on substrate pair, continuous operating temperature, and curing line constraints, Shanghai Jome Industrial Co., Ltd. (JOME) recommends evaluating GM 3239 / GM 3218, JM 2081, and JM 3302 / JM 380. Review our full specification table on this page or request a customized formulation sample.
Q: Can JOME customize viscosity, cure speed, or thermal conductivity for our automated production line?
Yes. JOME's Shanghai RandD laboratory customizes A/B mix viscosity, thixotropic index, pot life, Shore hardness, and thermal filler loading (0.75 to 25.0 W/m·K) to match your dispensing equipment and environmental test standards.
Industrial Adhesive Categories, Matched Grades and Engineering Guides
Product and Application Categories: Thermal Conductive Potting Compound · Thermal Conductive Silicone Gel Compound · Potting & Encapsulating Compound · Polyurethane Potting Compound · Epoxy Structural Adhesive · MMA Structural Bonding Adhesive · UV Structural Adhesive · PU Sealants · Fluorinated Sealants · Acrylic UV Adhesive · Dual Cure UV Hybrid Adhesives · Pre-coated thread sealant · Anaerobic structural adhesive · Waterproof Coating · Epoxy · Primer · Fluoro Silicone Gel Compound · Industries Guides · Automotive & New Energy Vehicles Guides · General Machinery Guides · Mass Transit Guides · Aerospace Guides
Matched Industrial Adhesives: Thermal Conductive potting Silicone Compound(0.75W) · High-temperature resistant lubricating grease · UV Curable Adhesive & Light Cure Adhesive · Screen Printing Silicone Ink for Fabric · 2-Part Clear epoxy adhesive thin layer Potting Compound · thermal conductive silicone grease（0.5-10 W/m.K ） · High bonding strength Optical transparent UV adhesive · 2-part Acrylic Structural Bonding Adhesive（MMA） · Metal, magnetically bonded Anaerobic Structural Adhesive · 2K Thermal conductive epoxy potting compound（1.5W） · UV-curable epoxy-based adhesive · 263 、277 Thread Locking Adhesive Prevents Bolts From Coming Loose · Thermal Conductive Polyurethane Potting Compound (1.3W) · Thermal conductive single-component RTV silicone adhesive（2.85W ） · High resilience UV glue replaces silicone rubber sealing ring · Clear self-repairing encapsulating silicone gel · Single-component low-temperature heat-curing epoxy structural adhesive · Temporary shielding material – Removable UV blue adhesive · Two-component paste-shaped thermal conductive silicone gel (8.0 W/mK)
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