Cone Penetration 150/170/200 Selection

INTRODUCTION
Cone penetration, measured in tenths of a millimeter under a standard cone load, is the single number that defines jelly gel softness: a higher value means a softer gel that flows more readily around inserted parts, while a lower value means a firmer, more shape-retentive gel. Hong Ye’s three standard grades map to three application families. HY-9400, penetration 200 plus or minus 30 and viscosity 1200 plus or minus 300 mPa.s, is the soft, high-flow grade, engineered for filter tank sealing where a knife edge must sink deeply and the gel must self-heal after filter changes. HY-9405, penetration 170 plus or minus 30 and viscosity 1800 plus or minus 400 mPa.s, balances softness with dimensional support for electronics potting, waterproofing and vibration damping in sensors, battery modules and control units. HY-9409, penetration 150 plus or minus 30 and viscosity 2200 plus or minus 400 mPa.s, is the firmer transparent grade for body-contact products such as cushions, pads and prosthetics that must hold shape and feel supportive. This article explains how penetration interacts with viscosity, cure and application mechanics so buyers can specify the right grade the first time.

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.

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

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.