N85 Functional Extender CAS 61790‑53‑2 is high‑purity natural siliceous earth filler manufactured through fine grinding and multi‑stage particle classification. Designed for construction‑grade sealant and adhesive, it forms stable thixotropic network inside paste system to avoid sagging on vertical joints. It raises hardness and tear strength after curing, reduces shrinkage deformation. Compatible with silicone, PU, MS hybrid polymer, it helps cut formula cost for mass‑produced building sealants

Product Detail

Overview

Our N85 Functional Extender CAS 61790‑53‑2 is refined from high‑quality diatomite ore with impurity removal, fine milling and precise screening. This cost‑efficient mineral extender is developed for construction sealant and adhesive production. Oversized grit particles are strictly controlled to prevent grainy surface on extruded sealant bead. It can be used together with fumed silica and calcium carbonate to balance rheology, extrusion performance and mechanical indicators for building sealing materials.

Key Features

Offer stable thixotropic effect, greatly enhance anti‑sag and non‑slump performance for vertical surface construction.
Boost hardness and tear resistance of cured sealant, lower curing shrinkage and improve dimensional stability.
Optimize extrusion smoothness for cartridge‑packaged sealant, achieve comfortable dispensing feeling.
Good compatibility with silicone, polyurethane, MS polymer and mainstream building sealant‑adhesive resins.
Low soluble impurities, hardly interfere with curing catalyst, maintain long shelf‑life of finished products.
Cost‑effective, suitable for large‑batch manufacturing of general construction sealing and bonding products.

Main Applications

Neutral silicone door & window construction sealant
Polyurethane building sealant and bonding adhesive
MS hybrid polymer joint sealant for curtain wall and concrete
General caulking sealant for architectural decoration
Mass‑production building adhesive requiring rheology modification

Usage Recommendation

Typical dosage: 10‑28% by weight, adjust based on expected thixotropy, extrusion force and mechanical requirements.
Add into kneader or planetary mixer, guarantee sufficient mixing to achieve full resin wetting.
Filler shall be fully dried before feeding; moisture will trigger foaming and abnormal curing failure.
Can compound with other mineral fillers to optimize formula cost.
Complete laboratory tests including anti‑sag property, extrusion performance and curing assessment before mass production.

Storage & Package

Store in dry, dust‑proof and ventilated warehouse, keep bags tightly sealed to avoid moisture absorption.
Standard package: 25kg woven bag with inner PE liner.

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.