Revenue from Contracts with Customers (Tables)

3 Months Ended

Apr. 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-month periods ended April 4, 2021 and March 29, 2020:

(millions of dollars)	Three Months Ended
Net Sales	Apr. 4, 2021		Mar. 29, 2020
Metalcasting	$	81.7	$	61.7
Household, Personal Care & Specialty Products		109.4		96.2
Environmental Products		26.0		36.7
Building Materials		13.8		16.8
Performance Materials		230.9		211.4
Paper PCC		89.6		85.1
Specialty PCC		20.4		17.5
Ground Calcium Carbonate		24.0		22.6
Talc		13.8		11.9
Specialty Minerals		147.8		137.1
Refractory Products		58.8		55.8
Metallurgical Products		15.1		13.2
Refractories		73.9		69.0
Total	$	452.6	$	417.5