

Product Description:
353ND Epoxy resin adhesive, also known as fiber optic adhesive, is suitable for the production of optical communication products, widely used in the production of optical devices such as fiber optic connector.
Product Application:
1)353ND is a two-component, 100% solids, heat-curing epoxy resin for use at elevated temperatures. The resin is resistant to dissolution and etching by a wide range of solvents and chemicals, and is ideal for bonding fiber optics, metals, glass, ceramics and most plastics.
2)353ND Unique Features:
3)353ND Suitable for use in thin films and slightly thicker films. When used in thicker applications, it is best to gel the colloid at room temperature or slightly above, then increase the temperature and cure for a short period of time.
4)353ND Suitable for painting, dipping, pouring or mechanical gluing processes.
Specification:
| Model | 353ND |
| Ingredients | Epoxy resin, A/B glue |
| Mixing ratio | By weight ratio, component A: component B = 10 :1 |
| Curing conditions | 150°C/1min; 80°C/30min; 120°C/5min; 100°C/10min |
| Refractive index | 1.5600 |
| Transmittance | >50%@ 5000Å >95%@ 9000Å |
| Shore hardness | 85~87 |
| Viscosity after mixing (50 rpm/23°C) | 3000-5000CPS |
| Operable time | 4 hours |
| Storage time | Room temperature storage time of one year, without refrigeration; -40 ℃ can be stored for 6 months |
Operating Instructions:
The following technical guidelines for practical application are provided for the user’s reference in the course of use:
(1)353ND Storage
353ND PartA&B requires storage at room temperature when unmixed and does not require refrigeration. If it is stored below 0°C, it must be rewarmed at room temperature for at least 3-4 hours before the A&B is mixed. This process is to avoid the formation of water within the Epoxy and to avoid air bubbles when the material is cured.
(2)353ND Part A&B Mixing Processes
2)If 353ND Part A & B are packaged in large quantities (e.g., tin cans, plastic bottles or glass bottles, etc.), first shake well the A and B components, then mix them in glassware at a ratio of 10 parts of Part A to 1 part of Part B until they are homogenized. If a large number of air bubbles are generated after mixing, the product should go through a defoaming process before application. There are two types of defoaming methods: vacuum defoaming and centrifugal defoaming.
(3) 353ND can be used after mixing time (Pot Life) and the amount of 353ND can be used after mixing time of 4 hours, so we should control the amount of use, so that the resin’s technical performance indicators to achieve the best. Because all the epoxy resins in the mixing, if beyond the usable time of its viscosity will therefore change and affect the adhesion, Epoxy Technology Inc. suggests that each use of the amount of the best not to exceed 25 grams.
4)Curing Time
The following curing time and temperature data are provided for users’ reference:
60℃: 1.5 hours
80℃: 15 minutes
100℃: 5 minutes
120℃: 2 minutes
150℃: 1 minute
353ND cures at 150°C or 200°C for the first 10 seconds, so the additional curing temperatures and times provided above are for reference only, and a portion of the heat is generated during curing itself. Under normal circumstances, it is not recommended to cure at temperatures above 150°C. It is best to cure at 150°C for 1 minute or at 80°C for 15 minutes. However, the actual curing time should be based on the curing response of the test product to 353ND.

Shenzhen Neofibo Technology Limited, founded in 2008 and based in Shenzhen, China, is committed to becoming a professional supplier of fiber optic polishing solutions. Our goal is to make our customers’ fiber connectivity more reliable.
Over the past 17 years, we’ve gathered a team of seasoned fiber optic professionals. Their expertise spans connector polishing and assembly, outside plant installation, transmission systems, datacom, CATV, and testing. Whether you’re a fiber optic scientist working on multi – gigabit, DWDM, or EDFA applications; a maintenance engineer for optical connecting systems; an outside plant contractor handling splicing and testing; a datacom manager dealing with multimode – to – single mode conversion; or an optical fiber component manufacturer in need of high – quality pigtails, consumables, and tools, Neofibo can provide you with proven solutions, products, and services.
Neofibo focuses on the field of fiber optic polishing solutions. We specialize in manufacturing fiber optic polishing machines, designing polishing fixtures for various optical fiber connectors, and offering complete polishing processes and materials for all types of fiber optic connectors.
We can also supply the full range of production equipment for fiber optic patch cords, including fiber optic polishing tools, end – face inspection microscopes, functional inspection and detection devices, raw materials like fiber optic cables and connectors, processing tools, and cleaning consumables.
Beyond products, Neofibo provides technical services and R & D support. We aspire to be your long – term, trusted partner.





What Does NEOFIBO Offer?
We provide a comprehensive range of high-quality fiber optic products, including patchcord production machines, polishing jigs (compatible with Seikoh Giken, Senko, Domaille standards, or custom-designed), polishing consumables, tools, cleaning supplies, tool kits, testing equipment, and splicing accessories. We are committed to delivering competitive pricing, superior quality, and fast turnaround!
What Are the Shipping Costs?
All listed prices are FOB Shenzhen. You may use your preferred courier; otherwise, we will arrange delivery via FEDEX, DHL, UPS, or another logistics provider (subject to confirmation), with shipping costs billed accordingly.
How Soon Will Goods Be Delivered?
– In-stock items: Dispatched within 1–2 business days after payment confirmation.
– Out-of-stock items: Estimated lead time of 3–10 working days.
How Can I Place an Order?
We offer three convenient ordering channels for our valued customers: online ordering, faxed order forms, or formal purchase orders sent via email.
What Is the Warranty Policy for NEOFIBO Products?
All NEOFIBO products (excluding consumables and items subject to normal wear and tear) come with a 1-year warranty from the date of purchase. For products with defects in materials or workmanship, NEOFIBO will, at its discretion, repair or replace the item—provided the product is returned to NEOFIBO (at the designated location) with prepaid shipping. This constitutes the exclusive remedy under the warranty.