Gel Color Enters Technical Specifications

INTRODUCTION

Global buyers increasingly specify gel color in procurement documents: filter and electronics OEMs request blue for quality-control visibility, while consumer and medical brands require transparent for aesthetics and food-contact perception. Chinese gel suppliers who offer both identities with stable batch-to-batch color consistency avoid qualification disputes. Hong Ye supplies blue HY-9400/HY-9405 with tightly controlled pigment dispersion and transparent HY-9409 with anti-yellowing high-purity chemistry, each with grade-appropriate compliance documents, and can produce custom colors from 20kg MOQ for brand-specific products.

PRODUCT REQUIREMENTS

Color selection requires: high contrast for fill inspection (blue); transparency for aesthetic and body-contact products; light shielding for photo-sensitive components; batch-to-batch color consistency; anti-yellowing clarity for transparent grades; and FDA/LFGB documentation for transparent food/skin-contact uses. In color detail, blue gel makes under-fill, bubbles and level immediately visible along channels, suiting filter and electronics inspection; transparent gel is water-white and clean for gel pads, breast pads and display parts. For photo-sensitive components, color or tint can reduce stray light without affecting cure or penetration once pigment is added. Batch color difference is controlled and transparent grades resist yellowing through long-term UV and heat aging; FDA/LFGB support is provided for skin-contact transparent use, with batch COA supplied.

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: Why are filter and electronics gels blue instead of clear?

A: Blue pigment creates high contrast against metal channels and dark PCBs, making fill voids immediately visible to operators and AOI; it also provides mild light shielding.

Q: Does the blue pigment affect gel safety or performance?

A: No. The pigment is fully encapsulated in the cured platinum network, does not migrate, and the gel retains RoHS/REACH compliance and full mechanical properties.

Q: Can we get custom colors for branded products?

A: Yes. Beyond standard blue and transparent, custom colors are produced from 20kg MOQ to match brand identity.

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.