As a factory, we are proud to introduce our top-of-the-line product – the BT-303 Super slow release slump retaining type Polycarboxylate Superplasticizer. This product is specially formulated to provide exceptional slump retention, with a super slow release time of up to 1 hour. Made from high-quality materials, this superplasticizer is designed to offer superior workability and excellent fluidity, making it an ideal choice for a range of concrete applications. With a focus on quality and reliability, our factory strives to deliver the best possible products to meet the needs and expectations of our customers. So, if you're looking for a high-quality polycarboxylate superplasticizer, look no further than the BT-303 - the premier choice for your next project.