Wider Use Reveals Gel Selection Errors

INTRODUCTION
As jelly gel adoption spreads from cleanroom filtration into electronics, energy storage and consumer products, buyers increasingly face grade-selection mistakes: using an over-soft gel where support is needed causes slump and migration, while an over-firm gel in a seal channel fails to self-heal. Wrong grade selection creates scrap, rework and qualification delays. Hong Ye reduces that risk with a clear three-grade lineup, free sample kits for trial, application engineering support and custom penetration grades from 20kg MOQ. Distributors and OEMs that standardize on a well-documented grade ladder shorten their customers’ development cycles and build repeat business, which is why application guidance has become as important as price in this market.


PRODUCT REQUIREMENTS
Grade selection requires understanding: penetration as softness index (higher = softer); viscosity as processability index (lower = easier flow into thin gaps); the seal-vs-support-vs-body-contact application split; self-healing needs (favor softer grades); shape-retention needs (favor firmer grades); and the option of custom penetration grades outside the three standards. In selection detail, penetration 200 corresponds to HY-9400, a soft high-tack grade with excellent re-sealing for filter gel channels; 170 corresponds to HY-9405, balancing softness and dimensional stability for electronic potting; 150 corresponds to HY-9409, a low-tack transparent grade that is easy to reposition for gel pads and body-contact products. Lower viscosity makes narrow-gap flow easier, while all grades offer a 20-40 minute operation time and 4-6 hour cure. If none of the three feels fits, custom penetration can be developed, validated in a trial and then supplied in volume.

CORRESPONDING PRODUCT MODEL PARAMETERS
Recommended model: HY-9400 - Blue high-tack grade for HEPA/ULPA filter gel channels and cleanroom seals

GRADE SELECTION GUIDE
The HY-94 series offers three standard jelly gel grades for liquid-channel sealing, soft electronic potting and body-contact gel products. Their color, cone penetration, tack and typical applications are described below so users can choose the grade that matches sealing force, shape retention and processing needs.
HY-9400 is a blue grade with cone penetration 200 (0.1mm) and high tack. It is mainly used in HEPA/ULPA filter gel channels and biosafety cabinet seals, and in other applications that require strong adhesion and repeatable re-sealability.
HY-9405 is a blue grade with cone penetration 170 (0.1mm) and medium tack. It is recommended for electronic potting and sensor encapsulation, and for applications that balance softness with dimensional stability.
HY-9409 is a transparent grade with cone penetration 150 (0.1mm) and low tack. It fits transparent gel pads, intimate apparel and prosthetic devices, and other applications that require visual clarity or easy repositioning.

FREQUENTLY ASKED QUESTIONS
Q: What does cone penetration 200 mean in practice?
A: The standard cone sinks 20.0mm into the gel under test load; higher penetration means softer, more flowable gel. HY-9400 at 200 is the high-penetration grade for knife-edge sealing.
Q: Can I use the high-penetration grade everywhere to be safe?
A: No. Over-soft gel slumps in deep cavities, allows heavy components to drift and feels unsupported in body-contact products; matching grade to function prevents field failures.
Q: Are custom softness levels available?
A: Yes. Beyond the three standard grades, custom penetration values are produced from 20kg MOQ for special feel, sealing depth or support requirements.

QUALITY ASSURANCE & CERTIFICATION
Every batch of Hong Ye HY-94 series jelly gel is produced under ISO 9001 certified quality management in a dedicated silicone workshop, with incoming raw-material inspection, in-process mixing control and finished-product testing on every batch. Before release each lot is checked for viscosity, mix ratio, cure time, penetration, color and tack, and a Certificate of Analysis (COA) listing the actual measured values ships with every order. Standard grades carry RoHS 2.0 and REACH SVHC test reports; skin-contact and baby-care grades can be supplied with FDA 21 CFR 177.2600 and LFGB Section 30/31 reports and, on request, ISO 10993 biocompatibility testing; flame-retardant grades meet UL94 V-0. Food-contact, medical and export orders are supported by the corresponding compliance files for customer qualification. Hong Ye has manufactured and supplied jelly gel to contractors, filter builders and equipment makers in over 60 countries since 2005, with monthly capacity above 500 tons, batch traceability and multi-language documentation. Application engineers provide grade selection, sample evaluation, on-site or video pouring guidance and after-sales follow-up, and technical data sheets (TDS), safety data sheets (SDS) and test reports are available before order to support tender and audit processes.


CONCLUSION
The market for tank sealant jelly gel in this application area continues to expand as cleanroom construction, electronic encapsulation, automotive electrification, energy storage and consumer product manufacturing drive demand for reliable two-component addition-cure silicones. Hong Ye supports this growth with ISO 9001 certified production, 500-plus ton monthly capacity, complete compliance documentation and responsive application engineering. Buyers evaluating suppliers are advised to look beyond unit price and compare batch-to-batch consistency, documentation completeness, delivery stability and technical service responsiveness, because the cost of a sealing or potting failure - rework, downtime, certification delay or product recall - far exceeds the incremental cost of a quality gel. Choosing the correct grade for the channel, operating temperature and service environment, following the 1:1 mixing and pouring procedure and validating with a small trial batch all help secure a durable seal. Hong Ye welcomes sample requests and application enquiries; our engineers will recommend the HY-9400, HY-9405 or HY-9409 grade that matches the sealing or potting requirement and support qualification from first sample through volume production.