Revenue from Contracts with Customers (Tables)

6 Months Ended

Jul. 04, 2021

Revenue from Contracts with Customers [Abstract]

Disaggregation of Revenue

The following table disaggregates our revenue by major source (product line) for the three and six-month periods ended July 4, 2021 and June 28, 2020:

(millions of dollars)	Three Months Ended				Six Months Ended
Net Sales	Jul. 4, 2021		Jun. 28, 2020		Jul. 4, 2021		Jun. 28, 2020
Metalcasting	$	80.5	$	52.8	$	162.2	$	114.5
Household, Personal Care & Specialty Products		102.6		87.9		212.0		184.1
Environmental Products		39.9		37.6		65.9		74.3
Building Materials		15.4		13.2		29.2		30.0
Performance Materials		238.4		191.5		469.3		402.9
Paper PCC		85.8		65.5		175.4		150.6
Specialty PCC		18.5		14.9		38.9		32.4
Ground Calcium Carbonate		25.5		20.6		49.5		43.2
Talc		12.9		8.8		26.7		20.7
Specialty Minerals		142.7		109.8		290.5		246.9
Refractory Products		58.0		47.1		116.8		102.9
Metallurgical Products		16.5		8.8		31.6		22.0
Refractories		74.5		55.9		148.4		124.9
Total	$	455.6	$	357.2	$	908.2	$	774.7