Isophthalic/NPG Gel Coat Base Resin for Water Slides-RealLand

Product Description

REL-8305 is a premium isophthalic/NPG unsaturated polyester resin specifically developed for use as a high-performance gel coat base resin. By leveraging the synergistic effects of isophthalic acid (ISO) and Neopentyl Glycol (NPG), this resin delivers a significant leap in durability and aesthetics compared to standard polyester resins.

Product Name	Description	Performance Attributes	Type	Application
REL-8305 isophthalic unsaturated polyester resin	Gel coat base resin	Excellent water resistance, excellent weather resistance and excellent transparency	ISO-NPG	Gel Coat Base Resin

PROPERTIES OF UNCURED RESIN (25ºC):

TEST ITEMS	UNIT	VALUE	METHOD
Appearance	---	Clear, yellowish liquid	GB/T8237.6.1.1
Brookfield viscosity	cp	800-1000	GB/T7193.4.1
Gel time	min	6.0-10.0	GB/T7193.4.6
Acid Value	mgKOH/g	9.0-14.0	GB/T2895
Non-Volatile Content	%	63.0-67.0	GB/T7193.4.3
Color (Gardner)	--	≤1.5	GB/T605

* Gel time test: 0.6Co/naph:2%+ AKZO M-50:2%

PROPERTIES OF CURED RESIN:

TEST ITEMS	UNIT	VALUE	METHOD
Tensile Strength	MPa	75	GB/T2568
Tensile Modulus	MPa	3100	GB/T2568
Elongation at Break	%	4.5	GB/T2568
Flexural Strength	MPa	130	GB/T2570
Flexural Modulus	MPa	3500	GB/T2570
Impack Resistance	KJ/M	13.5	GB/T1451
HDT (1.80 MPa)	ºC	85	GB/T1634
Barcol Hardness	---	48	GB/T3854
Water Absorption at 25ºC	%	0.125	GB/T1034

* Curing schedule: 1)0.6Co/naph:1.5%+ AKZO M-50:1.5%
2)24 hrs at 25ºC, 3 hrs at 60ºC, 2 hrs at 100ºC

Storage:
Isophthalic unsaturated polyester resin should be stored at temperatures below 25ºC. Its storage life decreases as the storage temperature rises. Avoid exposing this resin to heat sources like direct sunlight or steam pipes. To prevent water contamination of isophthalic unsaturated polyester resin, never store it outdoors. Keep the resin sealed to stop moisture absorption and monomer loss. After long - term storage, a mild mixing of the isophthalic unsaturated polyester resin is advisable. Also, rotate the stock.

Features & Applications

isophthalic unsaturated polyester resin Applications

Features:

Superior Mechanical Strength & Toughness: The ISO-based molecular structure provides REL-8305 with exceptional overall mechanical strength and resistance to environmental stress cracking, making it ideal for dynamic structural applications.

Exceptional Resistance Profile: It is engineered for long-term water and chemical resistance. Its superior hydrolysis resistance ensures the surface remains intact and free from blistering even under constant immersion.

Optical Clarity & Weatherability: Featuring excellent transparency and UV stability, REL-8305 maintains a high-gloss, weather-resistant finish that withstands the harshest environmental conditions.

isophthalic unsaturated polyester resin Application

Applications:
Gel coat base resin for artificial marble, sanitary ware and furniture;

Gel coat base resin for boats, swimming pools and fan blades.

Gel coat base resin for coatings, adhesives, and casting processes for creating decorative items and electrical insulation products.

Specifically designed for facilities requiring high-strength protection, such as water slides and marine equipment, REL-8305 is the ultimate solution for environments involving long-term water contact and rigorous chemical exposure.

Why RealLand

Changzhou RealLand Composite Material Technology Co., Ltd.

As a trusted isophthalic unsaturated polyester resin supplier in china, RealLand stands out through its unwavering commitment to innovation, quality, and sustainability. With 25+ years of expertise in unsaturated polyester resin, we leverage cutting edge R&D capabilities and a state-of-the-art production facility to deliver isophthalic unsaturated polyester resin that exceed industry benchmarks. Our isophthalic unsaturated polyester resin products boast ultra-high tensile strength and rapid curing efficiency.RealLand has a number of technology patents, and has passed ISO9001 and ISO14001.

We offer full customization to meet specific project demands, supported by a dedicated technical team providing end-to-end resin solutions from formulation optimization to on-site process guidance. Partner with RealLand for high-performance, eco-friendly isophthalic unsaturated polyester resin.

Changzhou RealLand Composite Material Technology Co., Ltd.

FAQs

Q: Can I Request a Sample of Unsaturated Polyester Resin?
A: Yes, we can provide 10kg of resin as a free sample.

Q: Do you have OEM/ODM service?
A: Yes, we are highly flexible in offering OEM/ODM services.

Q: Can I Customize the Formulation of Unsaturated Polyester Resin for My Project?
A: Yes, absolutely. We understand that different projects may have unique requirements. Our R & D department is well-equipped to handle custom formulations based on your specific needs. You can provide us with the details of your project, including any specific characteristics or performance criteria you are looking for, and our experts will work on tailoring a formulation that meets your requirements.

Q: How Do I Choose the Right Unsaturated Polyester Resin for My Application?
A: We would provide guidance on selecting the appropriate UPR based on different project requirements.

Q: What is The Product Lead Time?
A: 10 days.

Q: What's Shelf Life of Unsaturated Polyester Resin?
A: Normally 8 months.

Q: What Certifications and Quality Standards Does Your Unsaturated Polyester Resin Meet?
A: Our Unsaturated Polyester Resin meets CCS, RoHS, REACH, EMS, and QMS certifications and quality standards.

Q: What is Your Company's International Transportation Form?
A: For samples, we offer Delivery Duty Paid (DDP) services for most of the countries. This means that we handle the delivery process, including the payment of taxes, and you won't be required to manage customs clearance. For bulk orders, we normally transported by sea or land. Our commitment is to ensure the secure and efficient delivery of our products to your specified destination.